My '68 RR runs 10.46 best at sea level with 505" pump gas (91 octane), Dwayne Porter MW ported Indy EZ heads cam is around .672 roller, 10.5 /1 comp, 1050 dominator carb, 4.10 dana, leave at 2500 on 9" drag radials. 10.46 @ 129 in 90* heat this last September.That was with full 3" exhaust through flows to the rear axle and 2.5" over the axle and out the back. So a similar 440 should easily be high tens. Car weighs 3640# with me in it.