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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LOW BUCK BBC HEAD TEST-PROMAXX VS AFR

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

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Trump Gets Booed and Falls Asleep at NBA Finals, Spreads Deranged CA Election Lies: A Closer Look

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The Perfect Big Block Swap? 534ci L78 Look-a-Like Built to Destroy Asphalt

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CAMSHAFT POWER & SPECS According to Freiburger

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BBC Ported Peanut Port Head Review

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AFR Enforcer Heads New Style Vs Old Style

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Promaxx Project 215cc Head Review With Real Flow Numbers

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We Bought The CHEAPEST Chevy Heads On AMAZON...

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BBC Oval Port Head Dyno Tests. Which Is The Best

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Part 2 How To Build A 800HP BBC

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454 BBC REC PORT VS AFR OVAL-PORT HEAD TEST

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AFR Enforcer VS Skip White NKB (Budget SBC Head comparison!)

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Part 1 How To Build A 800HP BBC

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BB Chevy 454 stroked to 525 cubes - super big torque!

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WHICH FACTORY BBC HEAD MAKES THE MOST POWER? PEANUT PORT vs PORTED 049 OVAL vs REC PORT vs AFR 265!

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Cylinder head crack repair - Yamaha XT 350 - year 1989

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Dyno Test Of Chinese BBC Heads

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Crank modifications for increased power Part 1

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