I think those heads went 9.70's in a 3,500 pound RoadRunner.

You and I have somewhat similar heads.
Mine are 325cc CNC 440-1 with 2.19 intake
2 to 2-1/8" TTI
505 tall deck
10.9 compression
260/268@50 585/600 sft
93 Sunoco with ethanol
Indy dual plane
1000HP
Shift at 6300/6200
Full 3" exhaust to the bumper
8" convertor
3.54 gear
9x28 M/T pro bracket radial
Flat steel hood
Scaled at 3,930

With no headwind i'm in the 10.90's at almost 123

So if Someone did the math and took 600 pounds from my car and toss in 4.10's
The i'd be in the 60's or 70's perhaps