Quote:

Going by rapidly fading memory here, Grumpy Jenkins book had some cam selection stuff that talked about reducing the duration 5 degrees for each 25 ci drop to keep the same basic operating range. Of course, as soon as you also start changing to heads with different runner volumes, that kind of gets shot to he11.



I suspect this is about as good an answer as you will get.


8..603 156 mph best, 2905 lbs 549, indy 572-13, alky