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blk88lx · 04-05-2003, 09:02 PM

I am putting the finishing touches on a 351W swap. I have a GT-40 Lower and a Cobra upper installed.

On the stock upper there are 2 vaccuum ports in the front of the manifold. one is looped to a vac port on the drivers side and one goes to the charcoal canister (I think).

The Cobra does not have these 2 ports. Do I plug the other ports off? Need to keep the car smog legal as I am in the Army and I never know what Smog Nazi's I'll be dealing with.

Appreciate any help

04-05-2003, 09:02 PM	#1
blk88lx Registered Member Join Date: Jun 2001 Location: Fort Leonard Wood, MO Posts: 179	cobra upper install I am putting the finishing touches on a 351W swap. I have a GT-40 Lower and a Cobra upper installed. On the stock upper there are 2 vaccuum ports in the front of the manifold. one is looped to a vac port on the drivers side and one goes to the charcoal canister (I think). The Cobra does not have these 2 ports. Do I plug the other ports off? Need to keep the car smog legal as I am in the Army and I never know what Smog Nazi's I'll be dealing with. Appreciate any help __________________ 93 GT, 5.8 EFI usual bolt ons, 3.55's, subs, hurst, K+N 78 F100 Short bed, 5.8, dual pipes 4 bbl 03 Sable