HORSEPOWER
RPM T1 T2 T3 T4
3,100 314 317 288 271
3,500 368 371 342 333
4,000 413 417 401 393
4,500 466 469 471 458
5,000 519 527 533 520
5,500 560 558 570 567
6,000 543 484 535 607

LegendT1: Indy 2D dual plane; Comp 930 springT2: Indy 2D dual plane; Comp 120 Beehive springT3: As T2, but swap to Indy 440-2 single planeT4: As T3, but swap to solid tappet lashed at .004 inch

SOURCE
COMP Cams Hooker Headers
Demon Carburetion
Dahlonega
Ge
7-06/-864-8544
barrygrant.com
Indy Cylinder Head
8621 Southeastern Ave.
Indianapolis
IN  46239
3-17/-862-3724
indyheads.com
Harland Sharp
Strongsville
OH
440-238-3260
www.harlandsharp.com
Westech Performance Group
11098 Venture Dr., Unit C
Mira Loma
CA  91752
9-09/-685-4767
www.westechperformance.com