[CraigG.]

Could I gain much from increasing stall from 4,500 on "8 race converter and Turbo 400 with a brake to 5,500 or so?

Shift at 6,500 - 6,800

1/8 = 6.61 with a 1.41 at 106
Combination:
72 GTO - Race weight 3400 with me
Elevation 980 Feet
465 and 12 1/2 to 1
455 bored .040 over
Bore … Stroke…
Hand Ported E-heads - '1999 - '2000
Heads Flowed 331 int. and 235 ext.
72 CC milled .060
Zero Decked
Flat Top Ross Pistons

Solid Roller at 276 / 279 at .050 and .635 lift
Installed at 104
Comp Cams - Grind# P8 4028B / 4049B R 108.0
Intake Exhaust
Valve Adjustment .020 .022
Gross Valve Lift .631 .630
Duration @ .020 Tappet Lift 312 316

Valve timing Open Close
@ .050 INT: 30 BTDC 66 ABDC
EXH: 67 BBDC 31 ATDC
108.0 Intake Center Line
Intake Exhaust
Duration @ .050 276 279
Lobe Lift .4210 .4200
Lobe Separation 108

MSD 6AL 2
MSD Billet Dist.
Advance Locked at 34 degrees
North Wind
Holley 1050 Dominator
"3 1/2 x 16 air filter

"2 Hookers Headers
Turbo 400 with a brake
"8 4500 stall on the brake
4.11 gears with MT 10.5w x 28 slicks