Thanks for the nice comments guys. The Camino is Amt's 65. The engine is a big block Chevy. It could be a 396, 427 or one of these engines radically bored and stroked. It depends on the year the truck was raced. I was thinking 1967 which could make it any of the above motors. I chose 1967 because I wanted it to look like it had been around a couple of years at least. Also, a 396 would not have been very competitive in 1965 as there were not many (if any) aftermarket parts at that time for that particular engine.