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Old 03-12-2005, 05:26 AM
whitetop whitetop is offline
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Default Re: old school tunnel ram and carbs question

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Correct me if I am wrong,but I always heard that vacuum secondary carbs did not work on tunnel ram setups because the tunnel ram decreases the vacuum on the engine!I remember a long time ago that my brother had to change out his carbs to non vacuum secondaries in order to get it to run correctly.

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Was he possibly running too wild of a cam that produced no or little vacuum. Car Craft in the late '70's had a very extensive TR setup article for the street. All the pros who they interviewed recommended a VS carb. I think the jist of the article was for the street a VS only used as much gas as needed while a mechanical secondary gives you the gas whether you wanted it or not. I've also talked with many people who had cars like the Camaro posted above and asked them and it always came back to VS were best and that is what runs best on my car.

You have to remember we are talking street cars here with driveability as the goal. More show than go so to speak. Not a street/racecar. I was more concerned about my car restarting at a cruise and not popping/spitting etc. I am not concerned about the power.
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