Jumping on late, but it seems my combo runs right where it should, middle of the pact with the others posted...
3400lb. Dodge Demon 3.91 gears, 28x9" slicks, 904W, PTC 3K stall, SS springs and snubber.
340 block, .030" over (4.07"), stock caps studs.
MP 4" crank, Eagle SIR rods, dished Diamond pistons.
1800gr bobweight, pistons .005" above deck,1009gskt.
OOTB Eddys, Comp 985 spring upgrade, Crane 1.5rkrs.
Ultradyne ft solid 259/263*@.050, .590/.587",110LSA.
1.75" Hooker SC headers, M1 SP intake, 750 DP carb.

Ran 7.14@96 and 11.21@119 on pump gas in the heat.
Shift at 6000, rpm chip on 6500. Revved as high a 7000 on shifts with no real advantage, tried carbs up to 950 and no benefit there either. Also learned that a Performer RPM AirGap is no slouch on such a motor, same ET and MPH! Very forgiving and robust combos these 4" motors are! I am replacing the above combo with a 13.1 IndyBrock roller 416 (600+hp???) now since I have ladder-barred the Demon now and taken it off the street. The pump gas 416 is getting ported heads, a VooDoo street roller and the RPM AG intake and going in a '79 T&C (LeBaron) station wagon for a sleeper project. Same wide ratio 904, 3000 stall PTC, and 4.10 gears this time... Wish me luck!!! RB