The 340 that is in it now runs 13.20's. I put it in about 25 years ago, has a very mismatched cam for the combo. I want to put the fresh shortblock in, and want to try to take advantage of a more modern cam profile, etc.
Then your best bet is to pick up the phone and call Jim at Racer Brown, or Cam Motion, or Dwayne Porter and have them spec you a cam.
It's the same money.
FWIW, in a 73 A body, with an all stock 340 except for a .480 lift MP cam, Strip Dominator, 5204 hooker headers and 3.23 gears the car ran consistent 12.80's.
A 4.56 gear and some tuning the car eventually went 12.40's at over 109 and was out of cam at 1000 feet.
