Thread: double hump head mods
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11-15-2005 09:22 PM #1
double hump head mods
I have a pair of the following heads and would like to know what would be some good mods I should make to them. Nothing too wild
1968-69 3917293 307,327 1.72 1.5 75CC
The only other mods I intend on making are:
Holly Street Avenger (570 CFM)
Edelbrock Performer Manifold
Keeping the powerglide but swaping out rear gear to 3:55
headers???





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