GT40 Turbo Swirl heads vs Performer

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#6 (permalink)

10-29-2003, 05:25 PM

Curt C.

CC Member

Join Date: Nov 1999

Location: Las Vegas, NV

Cobra Make, Engine: Classic Roadster; 351W

Posts: 743

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Here is a summary of the test. Motor was a 306 running a comp cam XE264HR with 512 lift & 212/218 duration, Edelbrock Air Gap intake and a BG 650 speed demon carb. It is important to note the varying compression levels of the heads too.

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