TPI Vacuum at idle

[gabe]

Hey, anyone know off hand what a stock '85 TPI auto 305's idle vacuum
should be?  Keep in mind that it has the same cam as the later model 5
speeds (little longer duration & more lift than the auto's of 86 up)

Mine is at 14"@ about 575RPM.  I think this may be causing some off idle
derivability issues for the ECM...

Thanks
Gabe



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