Quote:
Originally Posted by Kenth
I wouldnīt change the 2-bbl vacuum advance unless itīs broke or makes part throttle ping.
If ping occurs at part throttle acceleration you may reduce the amount of advance by shortening the slot, one quarter of the total distance, for approximately 15° advance.
If you need a new vacuum advance, Standard Motor Products got the VC24A (Dana B1) to replace both the 1116242 and the 1116243 controls.
Starts@8-11in/hg and gives max 16°@16-18in/hg.
Hope this helps some....
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Thanks Kenth!! Found the part at Rock Auto. It was $10.80. Will pick it up and try it out.
Chuck
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1966 GTO Vert automatic.
1969 CR Judge Ram Air III 4sp Pattern Car.
1969 GTO standard 350HP TH-400.
2006 GTO Phantom Black 6spd.
1972 Formula 455HO Ram Air.
1976 LE Trans Am 50th Anniversary Edition with T top.
1976 Formula 350.
1977 Grand Prix Model J 350.
1978 Trans am 400 Pontiac.
1979 Trans am 403 Olds.
1968 Olds 442.
1971 TR6.
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