Early A header options - tuned RPM ranges

Yes. A set of shorty's in a 1 1/2" OD would be a good choice too. Or possibly a set of HiPo 340 manifolds. If you have a set, but I'm not sure they'll fit the early chassis.

If you would like, give me your bore size, cam specs, CR, and valve sizes, and I'll run the program for your motor.