diff --git a/monad-eth-testutil/examples/txgen/cli.rs b/monad-eth-testutil/examples/txgen/cli.rs
index d5ca2b85d4..ed50143d22 100644
--- a/monad-eth-testutil/examples/txgen/cli.rs
+++ b/monad-eth-testutil/examples/txgen/cli.rs
@@ -192,7 +192,6 @@ pub enum CliGenMode {
         tx_type: TxType,
     },
     HighCallData,
-    HighCallDataLowGasLimit,
     SelfDestructs,
     NonDeterministicStorage,
     StorageDeletes,
@@ -218,7 +217,6 @@ impl From<CliGenMode> for GenMode {
                 GenMode::RandomPriorityFee(RandomPriorityFeeConfig { tx_type })
             }
             CliGenMode::HighCallData => GenMode::HighCallData,
-            CliGenMode::HighCallDataLowGasLimit => GenMode::HighCallDataLowGasLimit,
             CliGenMode::SelfDestructs => GenMode::SelfDestructs,
             CliGenMode::NonDeterministicStorage => GenMode::NonDeterministicStorage,
             CliGenMode::StorageDeletes => GenMode::StorageDeletes,
diff --git a/monad-eth-testutil/examples/txgen/config.rs b/monad-eth-testutil/examples/txgen/config.rs
index 876ebf26f7..2e526f4be8 100644
--- a/monad-eth-testutil/examples/txgen/config.rs
+++ b/monad-eth-testutil/examples/txgen/config.rs
@@ -154,7 +154,6 @@ impl TrafficGen {
             GenMode::NullGen => 0,
             GenMode::ECMul => 10,
             GenMode::Uniswap => 10,
-            GenMode::HighCallDataLowGasLimit => 30,
             GenMode::ReserveBalance => 1,
             GenMode::ReserveBalanceFail(..) => 1,
             GenMode::SystemSpam(..) => 500,
@@ -181,7 +180,6 @@ impl TrafficGen {
             GenMode::SelfDestructs => 10,
             GenMode::HighCallData => 10,
             GenMode::ECMul => 10,
-            GenMode::HighCallDataLowGasLimit => 3,
             GenMode::Uniswap => 20,
             GenMode::ReserveBalance => 100,
             GenMode::ReserveBalanceFail(..) => 100,
@@ -208,7 +206,6 @@ impl TrafficGen {
             GenMode::NullGen => 100,
             GenMode::SelfDestructs => 100,
             GenMode::HighCallData => 100,
-            GenMode::HighCallDataLowGasLimit => 100,
             GenMode::ECMul => 100,
             GenMode::Uniswap => 200,
             GenMode::ReserveBalance => 2500,
@@ -238,8 +235,7 @@ impl TrafficGen {
                 TxType::ERC20 => ERC20,
                 TxType::Native => None,
             },
-            GenMode::HighCallData => None,
-            GenMode::HighCallDataLowGasLimit => None,
+            GenMode::HighCallData => ERC20,
             GenMode::SelfDestructs => None,
             GenMode::NonDeterministicStorage => ERC20,
             GenMode::StorageDeletes => ERC20,
@@ -423,7 +419,6 @@ pub enum GenMode {
     EIP7702Create(EIP7702CreateConfig),
     RandomPriorityFee(RandomPriorityFeeConfig),
     HighCallData,
-    HighCallDataLowGasLimit,
     SelfDestructs,
     NonDeterministicStorage,
     StorageDeletes,
diff --git a/monad-eth-testutil/examples/txgen/generators/high_call_data.rs b/monad-eth-testutil/examples/txgen/generators/high_call_data.rs
index d61b665ca0..0c6f71675f 100644
--- a/monad-eth-testutil/examples/txgen/generators/high_call_data.rs
+++ b/monad-eth-testutil/examples/txgen/generators/high_call_data.rs
@@ -18,7 +18,7 @@ use crate::{prelude::*, shared::erc20::ERC20};
 pub struct HighCallDataTxGenerator {
     pub(crate) recipient_keys: KeyPool,
     pub(crate) tx_per_sender: usize,
-    pub(crate) gas_limit: u64,
+    pub erc20: Option<ERC20>,
 }
 
 impl Generator for HighCallDataTxGenerator {
@@ -33,15 +33,13 @@ impl Generator for HighCallDataTxGenerator {
             for _ in 0..self.tx_per_sender {
                 let to = self.recipient_keys.next_addr();
 
-                let tx = ERC20::deploy_tx_with_gas_limit_and_priority(
-                    sender.nonce,
-                    &sender.key,
-                    ctx.base_fee * 2,
-                    ctx.chain_id,
-                    ctx.set_tx_gas_limit.unwrap_or(self.gas_limit), // use CLI override or generator default
-                    ctx.priority_fee.unwrap_or(10), // 10 default, override with --priority-fee
+                let tx = high_calldata_erc20_call(
+                    sender,
+                    self.erc20
+                        .as_ref()
+                        .expect("No ERC20 contract found, but tx_type is erc20"),
+                    ctx,
                 );
-                sender.nonce += 1;
 
                 txs.push((tx, to));
             }
@@ -50,3 +48,31 @@ impl Generator for HighCallDataTxGenerator {
         txs
     }
 }
+
+pub fn high_calldata_erc20_call(
+    from: &mut SimpleAccount,
+    erc20: &ERC20,
+    ctx: &GenCtx,
+) -> TxEnvelope {
+    let max_fee_per_gas = ctx.base_fee * 2;
+    let input = vec![0u8; 1 << 15];
+    let tx = crate::shared::erc20::make_tx(
+        from.nonce,
+        &from.key,
+        erc20.addr,
+        U256::ZERO,
+        input,
+        max_fee_per_gas,
+        ctx.chain_id,
+        ctx.set_tx_gas_limit,
+        ctx.priority_fee,
+    );
+
+    // update from
+    from.nonce += 1;
+    from.native_bal = from
+        .native_bal
+        .checked_sub(U256::from(400_000 * max_fee_per_gas))
+        .unwrap_or(U256::ZERO); // todo: wire gas correctly, see above comment
+    tx
+}
diff --git a/monad-eth-testutil/examples/txgen/generators/mod.rs b/monad-eth-testutil/examples/txgen/generators/mod.rs
index c9f77bc5c8..ccfc8fe3e7 100644
--- a/monad-eth-testutil/examples/txgen/generators/mod.rs
+++ b/monad-eth-testutil/examples/txgen/generators/mod.rs
@@ -92,12 +92,7 @@ pub fn make_generator(
         GenMode::HighCallData => Box::new(HighCallDataTxGenerator {
             recipient_keys,
             tx_per_sender,
-            gas_limit: 800_000,
-        }),
-        GenMode::HighCallDataLowGasLimit => Box::new(HighCallDataTxGenerator {
-            recipient_keys,
-            tx_per_sender,
-            gas_limit: 100_000,
+            erc20: deployed_contract.erc20().ok(),
         }),
         GenMode::NonDeterministicStorage => Box::new(NonDeterministicStorageTxGenerator {
             recipient_keys,
diff --git a/monad-eth-testutil/examples/txgen/shared/erc20.rs b/monad-eth-testutil/examples/txgen/shared/erc20.rs
index c5437132b2..7207297550 100644
--- a/monad-eth-testutil/examples/txgen/shared/erc20.rs
+++ b/monad-eth-testutil/examples/txgen/shared/erc20.rs
@@ -267,7 +267,7 @@ impl ERC20 {
     }
 }
 
-fn make_tx(
+pub fn make_tx(
     nonce: u64,
     signer: &PrivateKey,
     contract_or_to: Address,