Yes, every-now-and-then even I have a question to pose. I need some information on the idle vacuum situation at a certain port(s) for any/all of the following carbs:
1966 L-72----Holley #R3247A
1970 LT-1----Holley #R4555A
1971 LT-1----Holley #R4801A
1971 LS-6----Holley #R4802A
What I'm interested in is whether or not the vacuum fitting on the PASSENGER side of the carburetor exhibits PORTED vacuum or FULL MANIFOLD vacuum. It is VERY EASY to check this. With the engine running, simply remove the rubber line from the fitting and check to see if significant vacuum is present with the engine at idle. If little or no vacuum is present, then that fitting has PORTED vacuum; if significant vacuum is present, then that means it's non-ported, full manifold vacuum.
If there is more than 1 port on the PASSENGER side of the carb, please chack both. If there is more than 1, then there will be one on the throttle body and one on the air horn, both towards the forward end of the carb.
Thanks
1966 L-72----Holley #R3247A
1970 LT-1----Holley #R4555A
1971 LT-1----Holley #R4801A
1971 LS-6----Holley #R4802A
What I'm interested in is whether or not the vacuum fitting on the PASSENGER side of the carburetor exhibits PORTED vacuum or FULL MANIFOLD vacuum. It is VERY EASY to check this. With the engine running, simply remove the rubber line from the fitting and check to see if significant vacuum is present with the engine at idle. If little or no vacuum is present, then that fitting has PORTED vacuum; if significant vacuum is present, then that means it's non-ported, full manifold vacuum.
If there is more than 1 port on the PASSENGER side of the carb, please chack both. If there is more than 1, then there will be one on the throttle body and one on the air horn, both towards the forward end of the carb.
Thanks
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