Ol' Fart's Firebird Fantasy

68 Firebird. The 400 combo rated at 327 like Brent runs can run the index without much trouble or expense. If you want it to be a killer, then you need a good trans converter and some testing time and effort. You will have to rpm these some to make them run well.

the 350 combo could be an interesting deal. Good compression, better heads for the smaller size. 305 is a good place to start with these. This should run the index without much trouble. Parts should be easy to find, as well.

Either car you build should get you into the game without a munch of expense, getting to the next level is the harder part. Expense wise