plenum siamezing? (sp?)

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12-13-2004, 11:42 AM

l98+t5

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Car: 1988 camaro iroc-z z-28

Engine: L98 5.7 liter 350

Transmission: T-5 manual 5-speed

plenum siamezing? (sp?)

i have a completely stock tpi 350 and i am cleaning and flowmatching the injectors and i have the plenum off and no money so i was wondering if there are any benifits to siamesing the plenum while using the stock runners and baseplate? thanks

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12-13-2004, 03:03 PM

KiLLJ0Y

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nope.. wont be worth a damn thing without siamiezed runners and a larger intake manifold to flow the more air.

dont waste your time.

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12-13-2004, 03:58 PM

l98+t5

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Car: 1988 camaro iroc-z z-28

Engine: L98 5.7 liter 350

Transmission: T-5 manual 5-speed

ok thanks for the tip i would have done it otherwise thanks have a good one

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12-13-2004, 05:14 PM

91GTABird

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Car: 92' RS

Engine: 357

Transmission: TH350

Axle/Gears: 4.10

I have a 91' LB9 and i gained alittle low-end when i siamesed them. While its off go ahead and cut down your egr walls right behind you throttle body opening.

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12-13-2004, 05:17 PM

KiLLJ0Y

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yes that will help... but he was asking about the stock runners and siamiezing the plenum.. theres no benifit there..

but do the EGR Walls so its a clear air flow to the runners.

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