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Old 05-13-2025, 11:59 AM
PontiacHO PontiacHO is offline
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Join Date: Apr 2024
Location: Raleigh, NC
Posts: 467
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Here’s another opinion but since you’ve asked for things to check….
Personally I’ve never ever owned or seen a vacuum secondary Holley carb that would fully open on at WOT. Put a small screw and nut in the slotted secondary linkage and go drive it. I didn’t realize the cam specs until I looked it up. The cam, heads, and intake would work well on a 400. It’s just too much for a street 350.