Great choice man, I had a 67 Chevelle SS 396. That car could make holes in the pavement and eat 5.0s and rice rockets all day long. Rebuilt the engine, bored and stroked to 402, Holley 750 carb, Edelbrock Intake Manifold, all brand new GM internals. You had to feather the gas off the line or it would die. That Holley is a bitch to tune but once you got it tuned right its the best damn carb out there IMVHO. It was a dog all the way to about 1800 rpms, she didn't want to move. As soon as 1800 rpms came up...the devil came up from Hell. It scared the shit out of me. 12 bolt rear end with 3.73 gears or 3.83 gears(I can't remember exactly). The tranny was a 3 speed drag tranny with a B&M slam shifter. That engine isn't light and the front end of the car came up so easy. The car break loose on normal street tires shifting from 1st to 2nd. Ended up selling the car because my mom didn't want the thing in the driveway anymore and I had no other place to put it. Not only that it was time to move on, gas prices were on the way up and I wasn't driving the thing at all hardly. The guy that bought it redid body and interior and it looks sick now. I'm glad it didn't end up in a junk yard like so many classics. Good luck with yours. Oh and don't use a copper wire from the ignition switch to the starter. Learned that the hard way. Keep it danK! 
