As far as I'm concerned for a stocker type application headers are just to much of a HASSLE!!!! Stock manifolds really flow pretty decently for something stock. You can further improve things by doing some clean-up grinding which will help. My "Rockers" are less of a hassle & improve things MUCH more than 5HP. With them, since you are increasing volumetric efficiency your MPG will be better. It's all about being able to flow AIR!!!!!
Just my nickels worth.
Tom Telesco
Classic and Muscle Automotive
12 Cook St.
Norwalk, CT 06853-1601
Day Phone 203-324-6045 ET
NailHead Mini-Starters '53-'66
Adjustable Roller Tip Rocker Arms - All NailHeads
Custom forged pistons
Front & rear neoprene seals
Many other "Nail" parts
"If I can't get it, you don't need it!"
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