Danny, a 302 at 6,000 RPM, 100% volumetric efficiency, and zero manifold vacuum would only draw 524 CFM. At 90% VE and 5000 RPM it's only going to need 393. Is there a reason the 390 wouldn't be just about perfect for your application? Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!
