Figured out place to start. Fireball V6 in early GM compacts. Apparently the Nova was built on something they called an X platform. https://en.wikipedia.org/wiki/GM_X_platform Then you follow X platform car up into late 70's. If you stray off this path it gets messy in a hurry. Pitfalls are funny ignitions and non carb setups. Yes. There is at least one other GM V6. Messy.Very messy.