diff --git a/.github/scripts/parse_ported_tests.sh b/.github/scripts/parse_ported_tests.sh
index 5501635d0d2..25ea44e4425 100755
--- a/.github/scripts/parse_ported_tests.sh
+++ b/.github/scripts/parse_ported_tests.sh
@@ -12,8 +12,20 @@ WORKSPACE_PATH="${2:-$GITHUB_WORKSPACE}"
 
 echo "Changed or new test files: $CHANGED_TEST_FILES"
 
-# Extract ported_from markers
-uv run fill $CHANGED_TEST_FILES --show-ported-from --clean --quiet --links-as-filled --skip-coverage-missed-reason --ported-from-output-file ported_from_files.txt
+FILTERED_FILES=""
+for file in $CHANGED_TEST_FILES; do
+    if git diff origin/main -- "$file" | grep -q "^+.*@pytest.mark.ported_from"; then
+        FILTERED_FILES="$FILTERED_FILES $file"
+    fi
+done
+
+if [[ -z "$FILTERED_FILES" ]]; then
+    echo "No new ported_from markers found."
+    echo "any_ported=false" >> "$GITHUB_OUTPUT"
+    exit 0
+fi
+
+uv run fill $FILTERED_FILES --show-ported-from --clean --quiet --links-as-filled --skip-coverage-missed-reason --ported-from-output-file ported_from_files.txt
 files=$(cat ported_from_files.txt)
 echo "Extracted converted tests:"
 echo "$files"
diff --git a/tests/frontier/opcodes/test_push.py b/tests/frontier/opcodes/test_push.py
index e45e90ad6da..65cb213d6d1 100644
--- a/tests/frontier/opcodes/test_push.py
+++ b/tests/frontier/opcodes/test_push.py
@@ -8,6 +8,7 @@
 from ethereum_test_forks import Fork, Frontier, Homestead
 from ethereum_test_tools import Account, Alloc, Environment, StateTestFiller, Transaction
 from ethereum_test_tools import Opcodes as Op
+from ethereum_test_vm.bytecode import Bytecode
 
 
 def get_input_for_push_opcode(opcode: Op) -> bytes:
@@ -112,7 +113,11 @@ def test_stack_overflow(
      | SSTORE        |              | [0]: excerpt       |
      +---------------------------------------------------+
     """
-    contract_code = push_opcode(excerpt) * stack_height + Op.SSTORE
+    contract_code: Bytecode = Bytecode()
+    for _ in range(stack_height - 2):
+        contract_code += Op.PUSH1(0)  # mostly push 0 to avoid contract size limit exceeded
+    contract_code += push_opcode(excerpt) * 2 + Op.SSTORE
+
     contract = pre.deploy_contract(contract_code)
 
     tx = Transaction(