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Old 11-13-2006, 07:01 PM
1934chevycoupe 1934chevycoupe is offline
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which Barry Grant carb

this is a question for tech guy @ barry grant.
i sent all my engine specs into Barry Grants tech line, GMPP ZZ 383, and they suggested i go w/ their speed demon 650, w/ vacuum secondaries. i was just looking at the prices at Jegs for this carb, and i notice they have carbs setup for certain crate engines. i looked and saw they suggest a 750 for the fastburn 385. GMPP used a Holley 750 for their testing and HP and torque ratings. i just checked, and both engines have the same heads and cam, only mine is 383 ci and the other is a 350ci. so why does Grant suggest a 650 for more cubic inches.
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