New 5.0 mag
Heat made 418HP@5600 431LB@4600
Holley 433HP@5700 431LB@4800
The Holley did better than the Heat above 4800 Heat did better in the lower end
At 6200 Heat was 402HP 341LB
At 6200 Holley was 425HP 360LB
I hope this helps you. This was on a 347
[This message has been edited by Stang Runner (edited 07-23-2001).]
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