I've always had good luck with the 140's. There are a lot of aftermarket parts still available as they were the engine of choice for the sand car crowd for years. I still have a 140 engine and crown reverse turning kit for it. Kennedy adapters made an adapter that would hang that engine off the back of a vw bus trans-axle. It made for a great marriage as long as you were rolling before you jumped on it. And never, never, get rough in reverse! Ah, the old memory's. Enjoy your ride, there is a lot to work with there and they are a much better car than most gave them credit for.