Seems like every engine builder I have talk to has said to go to the 5.7 block and not the 6.1. So is the 6.1 block just junk is that the problem or just cause they are expensive to find?
70 Duster W8 motor. 1.29 60ft 5.79 1/8 at 120 mph glide with 1.80 gear @3170 lbs.
