Originally Posted by 440Jim
Originally Posted by Al_Alguire
YES! The better question is what did if fall to at the shift and where do you shift it? I know nothing about what power you make or where but you are likely 1000 rpm+- short of where it needs to be based on my experience with B1 stuff.

I have not run this much...
This run shifted at 7,400 and it fell back to 5,700 rpm.
I don't have dyno data. It does run quicker and more mph shifting at 7,400 instead of 7,000.

I believe the stall is lower than optimal, and just looking to confirm this opinion. I am fine with going slower and 5,400 rpm.
This run was with 32 deg ignition timing. It does sixty foot better with more timing. 1.19-1.20 so far.
About 2750 lbs (I need to rescale the car since removing the iron block/iron head combo at 2845 lbs)
4.56 rear gear, 33" tall tires.

I saw 105 lbs going from an early megablock to the BMP block. Plus you had iron heads before? probably 145 lbs lighter


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