Sheet Metal Intake

Those intakes are difficult to make as the insides where the runners connect to the main plenum are usually bedded with epoxy which is carved until all the cylinders are balanced.

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Given up the secrets huh?...:upsidedow

I used to crew for a "A" Altered Team running a 500 inch Pro Stock engine, and the plenum top was removable to run two 4 barrel carbs or 4 split carbs....very interesting to see all the inside work done on those manifolds.