Dimpled Intake Spacer adds 21+ HP to a 408 Small-block Chevy!
In this episode, we do a quick ring and bore break-in. Then, we started testing and tuning. Over the next few hours, we ran multiple tests and adjustments, jetting and timing, testing two carburetors and trying three different spacer variations. The day's big surprise was a dimpled intake spacer manufactured by Polymer Racing Products (https://polymerracingproducts.com). To our surprise, after swapping out the Wilson spacer for the Polymer one - and with no additional changes - we added an impressive 21.38 HP and 10 lbs-ft of Tq to the power curve! Visit us at https://internationaldynoauthority.com We are located in Ottawa, Ontario, Canada

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408 CI SMALL BLOCK CHEVY, PROJECT SLEEPER: DYNO TEST!!! WILL IT MAKE POWER???

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Dimpled Carb Spacer Dyno Test

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Super big torque 743 hp SB Chevy build.

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Millyard RC374 - FULL THROTTLE

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REACHING THE LIMIT OF MY TINY CAR IN -51°C | EP7

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It’s a mistake to throw away old car alternator! This easy idea you’ll use every day

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2 Plane intakes - good - but could be way better

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Ralfs MEISTERWERK in GEFAHR! - Opel Rekord E 3.0 24V - MOTOR AUS, es QUALMT!

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

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SMALL BLOCK 400-THE OTHER GUYS SMALL BLOCK! HOW TO MAKE MORE HP WITH YOUR BIG-INCH SMALL BLOCK CHEVY

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Carb Spacer Testing

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Stellantis Collapse: The €22 Billion Disaster Pulling Down Fiat, Alfa, Maserati and Vauxhall

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10 Things We Lost on Modern Motorcycles

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Big hidden HP - from anti-reversion mods

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400 SBC Chevy - 1.5 OR 1.6 Rockers What will make more power?? Dyno tests Last Episode of the build

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CHOOSING A CAMSHAFT FOR STREET OR RACE ? - Advice from the Experts - DON’T OVER CAM! Part 1

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How to Choose the Correct Spacer

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