In 1981 Me and some friends put my freshly built 426 Sreet Hemi in one of their "The Rod Shop" ex-pro/stock Challengers for the summer. It ran pretty good considering it was just a street Hemi with a .690 Crane roller modded carbs. I think it ran some 10.0s and runnered-up a few times before I reclaimed the motor for my roadrunner.
My roadrunners first pass down the track(Trails), was 7 tenths slower than it was before the engine rebuild.. It should have picked up about a second after the rebuild.
A quick look at carb linkage work I did when the motor was first put in the Dodge brought the problem to light. I had tightened a screw too much and prevented the secondarys from opening on both carbs

I redid the linkage and went back out and ran 11 tenths faster. 10.60.
Big disappointment...Never knowing what that old Rod Shop car would have ran with a hopped up street Hemi.

9.00

ok.. what was problem again...