As usual, 440 Jim is giving great advice.

My 15.5 to 1 Alky motor made best power on the Dyno with a 37 nz, 76 pill combination.

At the track, it ran a lot faster with 38 nz, 76 pill. Richer worked better to accelerate the car all the way down track...

Alky is very forgiving on the tune up, so have fun and let us know what you learn.

Arnie

67 Cuda 8.48@ 158.7 mph 1.18 60' 2,600 DA(so far...) 70 Super Bee 440 Six Pack 4-speed. 13.2 @ 104 Stock exhaust/Street tires.