Help me build my 340

You got a hell of a car there. While i can't attest to the mechanical improvements you're wanting to make, don't forget that this is YOUR car. Build it like you want it. :)

You will get a TON of help on here from the engine building gurus. I personally wouldn't do much to a 340, maybe look at a beefier cam, aftermarket intake and carb. Headers are always a good way to free up some power.

You can always just keep the stock parts should you ever decide to sell it and want to claim it's all original.