My Dad blew up the engine in his 69 Firebird and it now sits in the garage. I bought a 68 Cougar to fix up (I'm getting my license next year. We started working on the Cougar and found that it is too far gone so he traded me his Firebird. This is a great deal for me since it is a real good looking car. He said we will get an engine for it. It was a 350 car originally but somebody had a 400 in it with headers, alum heads, 3/4 cam, 410 rear, 3in exhaust pipes with flowmaster exhaust when he bought it. Here's my question, To make it more of a daily driver, should I get a 350? And does it have to be a Pontiac engine or would a 350 Chevy fit? I don't want a super fast car (Parents wouldn't let me drive it)but I don't want a 6 cylinder ether. Thanks for the advice Mike