diff --git a/blockpool/section.go b/blockpool/section.go
index 14e91cf33..49004d4ef 100644
--- a/blockpool/section.go
+++ b/blockpool/section.go
@@ -132,7 +132,7 @@ func (self *section) addSectionToBlockChain(p *peer) {
 		}
 		self.bp.lock.Unlock()
 
-		plog.Infof("[%s] insert %v blocks [%v/%v] into blockchain", sectionhex(self), len(blocks), hex(blocks[0].Hash()), hex(blocks[len(blocks)-1].Hash()))
+		plog.Debugf("[%s] insert %v blocks [%v/%v] into blockchain", sectionhex(self), len(blocks), hex(blocks[0].Hash()), hex(blocks[len(blocks)-1].Hash()))
 		err := self.bp.insertChain(blocks)
 		if err != nil {
 			self.invalid = true
diff --git a/cmd/utils/flags.go b/cmd/utils/flags.go
index e370cddec..0609bcf75 100644
--- a/cmd/utils/flags.go
+++ b/cmd/utils/flags.go
@@ -228,10 +228,6 @@ func MakeEthConfig(clientID, version string, ctx *cli.Context) *eth.Config {
 	// Set the log type
 	glog.SetToStderr(ctx.GlobalBool(LogToStdErrFlag.Name))
 
-	glog.V(2).Infoln("test it")
-
-	glog.V(3).Infoln("other stuff")
-
 	return &eth.Config{
 		Name:            common.MakeName(clientID, version),
 		DataDir:         ctx.GlobalString(DataDirFlag.Name),
diff --git a/core/block_processor.go b/core/block_processor.go
index 0a98f3e32..b3e18a70a 100644
--- a/core/block_processor.go
+++ b/core/block_processor.go
@@ -165,15 +165,9 @@ func (sm *BlockProcessor) processWithParent(block, parent *types.Block) (td *big
 	// Create a new state based on the parent's root (e.g., create copy)
 	state := state.New(parent.Root(), sm.db)
 
-	// track (possible) uncle block
-	var uncle bool
 	// Block validation
 	if err = sm.ValidateHeader(block.Header(), parent.Header()); err != nil {
-		if err != BlockEqualTSErr {
-			return
-		}
-		err = nil
-		uncle = true
+		return
 	}
 
 	// There can be at most two uncles
@@ -231,23 +225,14 @@ func (sm *BlockProcessor) processWithParent(block, parent *types.Block) (td *big
 	// Sync the current block's state to the database
 	state.Sync()
 
-	if !uncle {
-		// Remove transactions from the pool
-		sm.txpool.RemoveSet(block.Transactions())
-	}
+	// Remove transactions from the pool
+	sm.txpool.RemoveSet(block.Transactions())
 
 	// This puts transactions in a extra db for rpc
 	for i, tx := range block.Transactions() {
 		putTx(sm.extraDb, tx, block, uint64(i))
 	}
 
-	if uncle {
-		chainlogger.Infof("found possible uncle block #%d (%x...)\n", header.Number, block.Hash().Bytes()[0:4])
-		return td, nil, BlockEqualTSErr
-	} else {
-		chainlogger.Infof("processed block #%d (%d TXs %d UNCs) (%x...)\n", header.Number, len(block.Transactions()), len(block.Uncles()), block.Hash().Bytes()[0:4])
-	}
-
 	return td, state.Logs(), nil
 }
 
@@ -272,7 +257,8 @@ func (sm *BlockProcessor) ValidateHeader(block, parent *types.Header) error {
 		return fmt.Errorf("GasLimit check failed for block %v (%v > %v)", block.GasLimit, a, b)
 	}
 
-	if int64(block.Time) > time.Now().Unix() {
+	// Allow future blocks up to 4 seconds
+	if int64(block.Time)+4 > time.Now().Unix() {
 		return BlockFutureErr
 	}
 
diff --git a/core/chain_manager.go b/core/chain_manager.go
index bf5ba9b40..b9a08b13d 100644
--- a/core/chain_manager.go
+++ b/core/chain_manager.go
@@ -12,6 +12,7 @@ import (
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/event"
 	"github.com/ethereum/go-ethereum/logger"
+	"github.com/ethereum/go-ethereum/logger/glog"
 	"github.com/ethereum/go-ethereum/params"
 	"github.com/ethereum/go-ethereum/rlp"
 )
@@ -494,6 +495,10 @@ func (self *ChainManager) InsertChain(chain types.Blocks) error {
 
 				queue[i] = ChainEvent{block, logs}
 				queueEvent.canonicalCount++
+
+				if glog.V(logger.Debug) {
+					glog.Infof("inserted block #%d (%d TXs %d UNCs) (%x...)\n", block.Number(), len(block.Transactions()), len(block.Uncles()), block.Hash().Bytes()[0:4])
+				}
 			} else {
 				queue[i] = ChainSideEvent{block, logs}
 				queueEvent.sideCount++
@@ -503,6 +508,11 @@ func (self *ChainManager) InsertChain(chain types.Blocks) error {
 
 	}
 
+	if len(chain) > 0 && glog.V(logger.Info) {
+		start, end := chain[0], chain[len(chain)-1]
+		glog.Infof("imported %d blocks [%x / %x] #%v\n", len(chain), start.Hash().Bytes()[:4], end.Hash().Bytes()[:4], end.Number())
+	}
+
 	go self.eventMux.Post(queueEvent)
 
 	return nil
diff --git a/core/state/state_object.go b/core/state/state_object.go
index a7c20722c..e44bf2cd6 100644
--- a/core/state/state_object.go
+++ b/core/state/state_object.go
@@ -7,6 +7,8 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/ethereum/go-ethereum/logger"
+	"github.com/ethereum/go-ethereum/logger/glog"
 	"github.com/ethereum/go-ethereum/rlp"
 	"github.com/ethereum/go-ethereum/trie"
 )
@@ -121,7 +123,10 @@ func NewStateObjectFromBytes(address common.Address, data []byte, db common.Data
 func (self *StateObject) MarkForDeletion() {
 	self.remove = true
 	self.dirty = true
-	statelogger.Debugf("%x: #%d %v X\n", self.Address(), self.nonce, self.balance)
+
+	if glog.V(logger.Debug) {
+		glog.Infof("%x: #%d %v X\n", self.Address(), self.nonce, self.balance)
+	}
 }
 
 func (c *StateObject) getAddr(addr common.Hash) *common.Value {
@@ -185,13 +190,17 @@ func (c *StateObject) GetInstr(pc *big.Int) *common.Value {
 func (c *StateObject) AddBalance(amount *big.Int) {
 	c.SetBalance(new(big.Int).Add(c.balance, amount))
 
-	statelogger.Debugf("%x: #%d %v (+ %v)\n", c.Address(), c.nonce, c.balance, amount)
+	if glog.V(logger.Debug) {
+		glog.Infof("%x: #%d %v (+ %v)\n", c.Address(), c.nonce, c.balance, amount)
+	}
 }
 
 func (c *StateObject) SubBalance(amount *big.Int) {
 	c.SetBalance(new(big.Int).Sub(c.balance, amount))
 
-	statelogger.Debugf("%x: #%d %v (- %v)\n", c.Address(), c.nonce, c.balance, amount)
+	if glog.V(logger.Debug) {
+		glog.Infof("%x: #%d %v (- %v)\n", c.Address(), c.nonce, c.balance, amount)
+	}
 }
 
 func (c *StateObject) SetBalance(amount *big.Int) {
@@ -225,7 +234,9 @@ func (c *StateObject) ConvertGas(gas, price *big.Int) error {
 func (self *StateObject) SetGasPool(gasLimit *big.Int) {
 	self.gasPool = new(big.Int).Set(gasLimit)
 
-	statelogger.Debugf("%x: gas (+ %v)", self.Address(), self.gasPool)
+	if glog.V(logger.Debug) {
+		glog.Infof("%x: gas (+ %v)", self.Address(), self.gasPool)
+	}
 }
 
 func (self *StateObject) BuyGas(gas, price *big.Int) error {
diff --git a/core/state/statedb.go b/core/state/statedb.go
index 33e8c20e5..e027533aa 100644
--- a/core/state/statedb.go
+++ b/core/state/statedb.go
@@ -6,12 +6,10 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/logger"
+	"github.com/ethereum/go-ethereum/logger/glog"
 	"github.com/ethereum/go-ethereum/trie"
-	"github.com/golang/glog"
 )
 
-var statelogger = logger.NewLogger("STATE")
-
 // StateDBs within the ethereum protocol are used to store anything
 // within the merkle trie. StateDBs take care of caching and storing
 // nested states. It's the general query interface to retrieve:
diff --git a/core/vm/common.go b/core/vm/common.go
index 0a93c3dd9..7b8b7dc4d 100644
--- a/core/vm/common.go
+++ b/core/vm/common.go
@@ -5,11 +5,9 @@ import (
 	"math/big"
 
 	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/logger"
+	"github.com/ethereum/go-ethereum/logger/glog"
 )
 
-var vmlogger = logger.NewLogger("VM")
-
 // Global Debug flag indicating Debug VM (full logging)
 var Debug bool
 
@@ -41,7 +39,7 @@ func NewVm(env Environment) VirtualMachine {
 	case JitVmTy:
 		return NewJitVm(env)
 	default:
-		vmlogger.Infoln("unsupported vm type %d", env.VmType())
+		glog.V(0).Infoln("unsupported vm type %d", env.VmType())
 		fallthrough
 	case StdVmTy:
 		return New(env)
diff --git a/core/vm/vm.go b/core/vm/vm.go
index 6222ef8c2..118f60076 100644
--- a/core/vm/vm.go
+++ b/core/vm/vm.go
@@ -7,6 +7,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/state"
 	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/ethereum/go-ethereum/logger/glog"
 	"github.com/ethereum/go-ethereum/params"
 )
 
@@ -885,9 +886,7 @@ func (self *Vm) RunPrecompiled(p *PrecompiledAccount, callData []byte, context *
 
 func (self *Vm) Printf(format string, v ...interface{}) VirtualMachine {
 	if self.debug {
-		if self.logTy == LogTyPretty {
-			self.logStr += fmt.Sprintf(format, v...)
-		}
+		self.logStr += fmt.Sprintf(format, v...)
 	}
 
 	return self
@@ -895,10 +894,8 @@ func (self *Vm) Printf(format string, v ...interface{}) VirtualMachine {
 
 func (self *Vm) Endl() VirtualMachine {
 	if self.debug {
-		if self.logTy == LogTyPretty {
-			vmlogger.Infoln(self.logStr)
-			self.logStr = ""
-		}
+		glog.V(0).Infoln(self.logStr)
+		self.logStr = ""
 	}
 
 	return self
diff --git a/logger/glog/glog.go b/logger/glog/glog.go
index a0c4727f8..7f8cedbf1 100644
--- a/logger/glog/glog.go
+++ b/logger/glog/glog.go
@@ -1055,6 +1055,7 @@ func (v Verbose) Infoln(args ...interface{}) {
 // Infof is equivalent to the global Infof function, guarded by the value of v.
 // See the documentation of V for usage.
 func (v Verbose) Infof(format string, args ...interface{}) {
+	fmt.Println(v)
 	if v {
 		logging.printf(infoLog, format, args...)
 	}
diff --git a/tests/vm/gh_test.go b/tests/vm/gh_test.go
index 69e2a9819..a96a3eba6 100644
--- a/tests/vm/gh_test.go
+++ b/tests/vm/gh_test.go
@@ -9,8 +9,10 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/state"
 	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/core/vm"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/logger"
+	"github.com/ethereum/go-ethereum/logger/glog"
 	"github.com/ethereum/go-ethereum/tests/helper"
 )
 
@@ -80,14 +82,13 @@ func RunVmTest(p string, t *testing.T) {
 	tests := make(map[string]VmTest)
 	helper.CreateFileTests(t, p, &tests)
 
+	vm.Debug = true
+	glog.SetV(4)
+	glog.SetToStderr(true)
 	for name, test := range tests {
-		/*
-			vm.Debug = true
-			helper.Logger.SetLogLevel(5)
-			if name != "Call1MB1024Calldepth" {
-				continue
-			}
-		*/
+		if name != "stackLimitPush32_1024" {
+			continue
+		}
 		db, _ := ethdb.NewMemDatabase()
 		statedb := state.New(common.Hash{}, db)
 		for addr, account := range test.Pre {