Originally Posted By Dave Hall
Just make sure all the timing is in by 3,000rpm and check it at 3,000rpm or above. I wouldn't run more than about 34 total.


Right. With light springs, it's in by 12-1500. My reasoning is most engines - that aren't bone stock - are above 3k before they move off the spot. Why not just lock it out, and take advantage of the improved and stable idle, throttle response and carb function? I'm talking carburated drag racing.

If the results don't match the theory, change the theory.