If you have the time, what I would do is advance the cam timing 4 degrees and just see what happens. Wallace calculators are free
OP, do you know where your cam is intake lobe center is? If not take the time to learn now how to find out and make sure it is advanced on the intake lobes from 3 to 6 degrees closer to TDC than it is now. If it is at max lobe lift at 110 ATDC or more then move it closer to TDC. 107 to 105 ATDC.
Little things can mean a lot
Have you tried different launch RPM yet? If not do that also, seeing your 60 ft. times varying from 1.61 to 1.5? makes me think you have ET available to go quicker in both the 1/8 mile and 1/4 mile.
I try to focus on the reaction time and 60 ft. times when wanting to go faster and win more races, also try different shift RPM in 1st and 2nd gear and look at the complete time slip when your doing that testing
Knowledge is power
How much total timing and how much timing below your current stall RPM?
