diff --git a/eth/api_backend.go b/eth/api_backend.go
index 9ed073ceb8..b1529e098e 100644
--- a/eth/api_backend.go
+++ b/eth/api_backend.go
@@ -505,10 +505,6 @@ func (b *EthAPIBackend) SendBid(ctx context.Context, bid *types.BidArgs) (common
 	return b.Miner().SendBid(ctx, bid)
 }
 
-func (b *EthAPIBackend) BestBidGasFee(parentHash common.Hash) *big.Int {
-	return b.Miner().BestPackedBlockReward(parentHash)
-}
-
 func (b *EthAPIBackend) MinerInTurn() bool {
 	return b.Miner().InTurn()
 }
diff --git a/internal/ethapi/api_mev.go b/internal/ethapi/api_mev.go
index b1e0c08605..ff18f69009 100644
--- a/internal/ethapi/api_mev.go
+++ b/internal/ethapi/api_mev.go
@@ -3,7 +3,6 @@ package ethapi
 import (
 	"context"
 	"fmt"
-	"math/big"
 	"time"
 
 	"github.com/ethereum/go-ethereum/common"
@@ -88,10 +87,6 @@ func (m *MevAPI) SendBid(ctx context.Context, args types.BidArgs) (common.Hash,
 	return m.b.SendBid(ctx, &args)
 }
 
-func (m *MevAPI) BestBidGasFee(_ context.Context, parentHash common.Hash) *big.Int {
-	return m.b.BestBidGasFee(parentHash)
-}
-
 func (m *MevAPI) Params() *types.MevParams {
 	return m.b.MevParams()
 }
diff --git a/internal/ethapi/api_test.go b/internal/ethapi/api_test.go
index 774d2db699..7562d7f1ca 100644
--- a/internal/ethapi/api_test.go
+++ b/internal/ethapi/api_test.go
@@ -665,10 +665,6 @@ func (b *testBackend) SendBid(ctx context.Context, bid *types.BidArgs) (common.H
 	panic("implement me")
 }
 func (b *testBackend) MinerInTurn() bool { return false }
-func (b *testBackend) BestBidGasFee(parentHash common.Hash) *big.Int {
-	//TODO implement me
-	panic("implement me")
-}
 
 func TestEstimateGas(t *testing.T) {
 	t.Parallel()
diff --git a/internal/ethapi/backend.go b/internal/ethapi/backend.go
index 8e6dfbea87..30d28aad41 100644
--- a/internal/ethapi/backend.go
+++ b/internal/ethapi/backend.go
@@ -120,8 +120,6 @@ type Backend interface {
 	HasBuilder(builder common.Address) bool
 	// SendBid receives bid from the builders.
 	SendBid(ctx context.Context, bid *types.BidArgs) (common.Hash, error)
-	// BestBidGasFee returns the gas fee of the best bid for the given parent hash.
-	BestBidGasFee(parentHash common.Hash) *big.Int
 	// MinerInTurn returns true if the validator is in turn to propose the block.
 	MinerInTurn() bool
 }
diff --git a/internal/ethapi/transaction_args_test.go b/internal/ethapi/transaction_args_test.go
index bac730fc59..95a20870e2 100644
--- a/internal/ethapi/transaction_args_test.go
+++ b/internal/ethapi/transaction_args_test.go
@@ -430,6 +430,3 @@ func (b *backendMock) SendBid(ctx context.Context, bid *types.BidArgs) (common.H
 	panic("implement me")
 }
 func (b *backendMock) MinerInTurn() bool { return false }
-func (b *backendMock) BestBidGasFee(parentHash common.Hash) *big.Int {
-	panic("implement me")
-}
diff --git a/miner/bid_simulator.go b/miner/bid_simulator.go
index df6c6b891f..33b9ab17e6 100644
--- a/miner/bid_simulator.go
+++ b/miner/bid_simulator.go
@@ -406,10 +406,6 @@ func (b *bidSimulator) newBidLoop() {
 		}
 	}
 
-	genDiscardedReply := func(betterBid *BidRuntime) error {
-		return fmt.Errorf("bid is discarded, current bestBid is [blockReward: %s, validatorReward: %s]", betterBid.expectedBlockReward, betterBid.expectedValidatorReward)
-	}
-
 	for {
 		select {
 		case newBid := <-b.newBidCh:
@@ -435,6 +431,7 @@ func (b *bidSimulator) newBidLoop() {
 
 			var replyErr error
 			toCommit := true
+			bidAcceptted := true
 			bestBidToRun := b.GetBestBidToRun(newBid.bid.ParentHash)
 			if bestBidToRun != nil {
 				bestBidRuntime, _ := newBidRuntime(bestBidToRun, *b.config.ValidatorCommission)
@@ -445,13 +442,13 @@ func (b *bidSimulator) newBidLoop() {
 				} else if !bestBidToRun.IsCommitted() {
 					// bestBidToRun is not committed yet, this newBid will trigger bestBidToRun to commit
 					bidRuntime = bestBidRuntime
-					replyErr = genDiscardedReply(bidRuntime)
+					bidAcceptted = false
 					log.Debug("discard new bid and to simulate the non-committed bestBidToRun",
 						"builder", bestBidToRun.Builder, "bidHash", bestBidToRun.Hash().TerminalString())
 				} else {
 					// new bid will be discarded, as it is useless now.
 					toCommit = false
-					replyErr = genDiscardedReply(bestBidRuntime)
+					bidAcceptted = false
 					log.Debug("new bid will be discarded", "builder", bestBidToRun.Builder,
 						"bidHash", bestBidToRun.Hash().TerminalString())
 				}
@@ -493,7 +490,7 @@ func (b *bidSimulator) newBidLoop() {
 				log.Info("[BID ARRIVED]",
 					"block", newBid.bid.BlockNumber,
 					"builder", newBid.bid.Builder,
-					"accepted", replyErr == nil,
+					"accepted", bidAcceptted,
 					"blockReward", weiToEtherStringF6(bidRuntime.expectedBlockReward),
 					"validatorReward", weiToEtherStringF6(bidRuntime.expectedValidatorReward),
 					"tx", len(newBid.bid.Txs),
@@ -685,7 +682,7 @@ func (b *bidSimulator) simBid(interruptCh chan int32, bidRuntime *BidRuntime) {
 		if err != nil {
 			logCtx = append(logCtx, "err", err)
 			log.Info("BidSimulator: simulation failed", logCtx...)
-			if err != errBetterBid {
+			if !errors.Is(errBetterBid, err) {
 				go b.reportIssue(bidRuntime, err)
 			}
 		}
diff --git a/miner/miner_mev.go b/miner/miner_mev.go
index 102d8e4381..69a9195d15 100644
--- a/miner/miner_mev.go
+++ b/miner/miner_mev.go
@@ -80,15 +80,6 @@ func (miner *Miner) SendBid(ctx context.Context, bidArgs *types.BidArgs) (common
 	return bid.Hash(), nil
 }
 
-func (miner *Miner) BestPackedBlockReward(parentHash common.Hash) *big.Int {
-	bidRuntime := miner.bidSimulator.GetBestBid(parentHash)
-	if bidRuntime == nil {
-		return big.NewInt(0)
-	}
-
-	return bidRuntime.packedBlockReward
-}
-
 func (miner *Miner) MevParams() *types.MevParams {
 	builderFeeCeil, ok := big.NewInt(0).SetString(*miner.worker.config.Mev.BuilderFeeCeil, 10)
 	if !ok {