I rebuilt a 350 to the specs I got from a budget build in Car Craft. It's .030 over flat top zero deck height. I am using aluminum vortec heads with 2.02/1.60 and springs that will handle the lift of the cam. The cam is a Comp Thumpr, it's the middle one - I don't have the cam card in the house - flat tappet. Straight cut timing gears. I'm using an Air-Gap intake and a 750 Eldebrock. The one in the mag made 420/420ish so I hope I'm in that range.
I have a 700r4 in it now but am contemplating switching over to a 4-speed that I already have. It would be more fun to drive as a stick, maybe faster as an auto, though.
The rear is a 3.73 10 bolt with an Eaton Tru-Track. The nice thing is that it is 58" wide, so when I relocated the spring perches under the frame I had ton's of room for the 8.5" Americans. I am also using Cal-Tracs for traction. I know slappers or ladder bars are more period but these things should work well.
I hope to take it down the track a few times, not too fast. I don't have a roll bar and not sure if I want to put one in.
I am going to build a thread on what I've done so far. It's been about 4 years so far, tho I didn't really work on it much this year.
Later,
Mike