quote:Originally posted by PanteraDoug: Just came across this. It appears to be basically a box ram, like the Bud Moore Trans-Am race manifold of the 70s but for 2x4 Holleys.
Sort of. Primary difference is the Bud Moore Maxiplenum has about 8” of runner for each cylinder lying across the valley where this one has essentially no runner.
It is Procomp, at least that was the return address in Rialto, CA. The quality of the casting isn’t so much an issue. The design of the intake is.quote:I would also presume since it is the Pro-Comp brand made for the 3v intake ports that it is fresh out of China? It is cheap at $359. Must be a good exchange rate at the moment? Anyone with any opinions on it?
quote:Anyone know what the intake gasket part number is so I can take a look at the alighnment/mis-alighnment scenario?
I did provide some reference dimensions for the ports in the pics at the link George referenced to my post over at the 335 series forum.
quote:Isn't a manifold like this "tuned" by an under carb plate mounting four tubes? The tubes increase port velocity and the open plenum removes restriction? This is a tunnel ram without the ram tubes?
The runner length on this intake will make the overall induction track tune to essentially that of the intake port length in the head, which means it will not come into Helmholtz resonance at any rpm within practical reach in useful terms. This is because the reversion pressure wave will cease once it sees the plenum opening and adding length under the carb won’t change this. This does not mean it won’t “work”, but that is a relative term. It is unlikely to work well, and is most likely to work very poorly, but that doesn’t mean the engine won’t run with this intake and a couple carbs on it. I didn’t run it because I didn’t feel it a good investment of time, ….but hey someone else may have a different view and it’s OK with me if they express it.
quote:Oh well. It's cheap enough to hang on the wall for decoration. It does look good.
I sent it on its way to its next home. He may be a member of the forum based upon his eBay handle. As FYI, the seller is open to offers and the BIN price on my auction is a clue to what he accepted from me. I donated shipping as a public service to 335 series forum.
http://www.ebay.com/itm/230816...id=p3984.m1587.l2649
Best,
K