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Discussion Starter · #1 ·
Has anyone gone from a 302 truck lower to a Holley lower with their Saleen/Vortech intake? Just wondering on your results and your basic combination. If you could also advise if your 302 lower was ported or not prior to the swap and if you went with an unported or ported Holley lower during the swap.

I have a 347 with stage III Windsor Sr's. My lower has only been slightly ported to match the heads with a 1262 gasket and port matched with the upper. I considering the swap to a Holley for the better flow.

I know the Holley has much better flow stock than the truck lower with modest porting. If anyone has flow figures of both of the stock pieces I'd love to that too.


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