For comparison, we have a .030 over 572 (580) with less lift (.768 gross), less flow (around 395), less C/R (12.4) but more carb (2 x 1150 TR). According to Wallace, it makes around 910hp on a good day (142 mph + @ 4023lb). Best shift point seems to be around 6800, rpms fall back 500rpm or so.
So I'm guessing around 940 on gas and 1000 on Alcohol popcorn

'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials.
9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge.
RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03