Holley intake manifold won't seal.
04-13-2017, 06:54 PM
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Holley intake manifold won't seal. I have a holley mid on my LM7. Has those stupid puny o-rings as opposed to the thick gaskets that all the other applications use. It looks flush to the heads but the car is surging at idle. When I spray brake cleaner at each of the runners the RPMs shoot up. Heads are only milled .015. Anyone else experience a similar problem with these manifolds?
