I dont think 750hp would be all that hard to reach with some 350cfm heads on a high compression roller stroker build.

Then, as you say....... Just depends on what you bolt it into.

And there's also boost or spray.

'Nother one:
14:1 528, b1bs heads flowing around 325. M1 TR with 2 x 750's, .690 roller, made right about 720hp @ 6000rpm.
Went 9.71 @ 140 in a 3700lb 68 charger R/T.

One more:
12:1 low deck 451, stage 6's with mild porting(300cfm), RB TG4500, .685 roller, made 650hp, went 9.31 @ 143 in a 2650lb S/G 70 Cuda.