7.30 @ 99.989 turbo s475 blow thru carb sleeper maverick grabber big block 1973 460 ford

this is the first time i have taken it to the track since i put it back together it was 10psi air in the 29/9.5by14in slicks 15psi boost from s475 turbo 1.1 a/r 3100 rpm launch tried to spin on foot brake will have to back it down to 2900 rpm building 2psi on the line 36 degrees of total timing pulling 1.4deg per psi so 15 under boost 1.78 60ft time performer intake 900cfm carb shop blow thru 3500 stall converter 2step 3.00 gear 8 inch with mini spool .503 lift flat tappet summit cam stock valve d3ve heads i ported shifting at 5000