Couple questions
Did you swap out the intake valves to 2.05 on those heads? Because they come with 2.100 valves
Any why the tiny bore
That block should be good to around 4.200 or so. Using “ all” of it certainly wouldn't be wise, but certainly i would think having the bore well over 4 inches would be very productive?
Sorry, just curious

Last edited by B3422W5; 07/03/19 04:41 PM.

69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, 10.40 @127 1/4
1.41 best 60 foot
6.60 at 103.90 1/8