check your vacuum ...and then check your power valve in the holley...

also...adjust your idle mixture screws..

check your float levels too...

i have a similar cam in my 73 duster and it runs great with a 750 vacuum holley..

Last edited by 70AARcuda; 12/29/08 07:47 PM.
Tony

70 AARCuda Vitamin C
71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield)
71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas)
71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)