guess again , did you see grumpys sig , mellissas car in particular the 10.10 run was done on 60s and alkycontrol
if i had to guess i'd guess her car was only at 85-88% inj duty , im sure grumpy knows
im at 62%inj duty of 75s , thats only 47lbs of fuel .
with 60s and alky i say mid 9s (9.50) maybe a lil more before they are static
its not just a guess , fuel calcs say its possible to push a 3700lb car 9.50 143mph with only ~70lbs of fuel (6 injectors)
for 60s at 100% injector and being conservative with 15% alky added and ive found 13-15% fuel needs to be pulled and some like to run more alky than others , so your 60s with alky are capable of what 72s could run on fuel alone . oh , and if you should get that far you'll be making approx 850hp so better have some really good parts in that block and a better fuel supply than a single 340 pump
but if you are near that i would upgrade to 83s at least to leave some room and be under 80% duty