Oval Port Heads VS Rectangle Port Heads Promaxx 290 vs Promaxx 317
I give dyno comparisons between a set of Promaxx 290 oval (roval port) heads vs Promaxx 317 heads. I show flow numbers and dyno numbers. You can contact me at [email protected] or my website wengines.com

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Oval Port BBC Head Dyno Test AFR265 vs Brodix RR270 vs Promaxx 290

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What Did The Ported Promaxx 290 Heads Do On The Dyno

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Carb Jet Sizing Explained | Power Valve Setup Made Easy

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AFR BBC Enforcer Head Review with real flow numbers

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Cheap POWER Engine Shootout! SBC vs LS1 WHO WINS?! It's NOT WHAT YOU THINK!

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🔥BTR CNC Ported Canted Valve Heads Are Here!🔥

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Dyno Test Of Chinese BBC Heads

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UNCLE BOB and Eric Weingartner try EVERYTHING on the 406 Small Block Chevy!

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Rectangle Port Intake On Oval Port BBC Heads

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PowerTec 10 EP 9 Porting the WORLDS BEST? BBC Iron Heads

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How To Build a Big Block… For BIG Power

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LOW BUCK BBC HEAD TEST-PROMAXX VS AFR

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Camshaft info. Why I think more lift is better.

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Good Chinese BBC Heads

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Small Block Chevy Easy… Finally A Dyno The Way It Should Go! How Much Power Will It Make?

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Intake Manifold Test Results On The Dyno BBC

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What You Are Missing About Porting Heads

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OILING! Small Block Vintage Chevy (Chevrolet) Motor - Ed Smith's Tricks of the Trade w #barryt

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HOW MUCH ARE AFTER MARKET IRON & ALUMINUM HEADS WORTH ON A BBC? STOCK REC PORT VS SUMMIT VS AFR 290

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