diff --git a/packages/testing/src/execution_testing/specs/benchmark.py b/packages/testing/src/execution_testing/specs/benchmark.py
index 1b7d022ae2..1b0d7697f1 100644
--- a/packages/testing/src/execution_testing/specs/benchmark.py
+++ b/packages/testing/src/execution_testing/specs/benchmark.py
@@ -323,8 +323,9 @@ def execute(
     ) -> BaseExecute:
         """Execute the benchmark test by sending it to the live network."""
         if execute_format == TransactionPost:
+            assert self.blocks is not None
             return TransactionPost(
-                blocks=[[self.tx]],
+                blocks=[block.txs for block in self.blocks],
                 post=self.post,
             )
         raise Exception(f"Unsupported execute format: {execute_format}")
diff --git a/tests/benchmark/compute/instruction/test_system.py b/tests/benchmark/compute/instruction/test_system.py
index 80933bc979..8badf0a676 100644
--- a/tests/benchmark/compute/instruction/test_system.py
+++ b/tests/benchmark/compute/instruction/test_system.py
@@ -169,7 +169,7 @@ def test_xcall(
 
     contracts_deployment_tx = Transaction(
         to=factory_caller_address,
-        gas_limit=env.gas_limit,
+        gas_limit=20 * gas_benchmark_value,
         gas_price=10**6,
         data=Hash(num_contracts),
         sender=pre.fund_eoa(),