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Old 03-02-2023, 07:38 AM
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68 Firebird 68 Firebird is offline
Chief Ponti-yacker
 
Join Date: Apr 2001
Location: Colonia NJ USA
Posts: 994
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Thanks Shiny,
cleaning out old stash of used parts, & I came across this piece.
Curious to see if adding more vacuum advance would have any benefits.
The Vac Can in my HEI currently adds 10 and works well. Did not want to modify it,
just wanted to try another with lower start point.
Always tinkering!!
Gerry

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1968 Firebird 400, 068 cam, TH400 & 13" Continental Converter, Auburn posi with 3:08 factory gears, Cliff's Q-jet resting on a 68 factory iron intake, GM HEI and Ram Air pans and RARE Long Branch Manifolds

Last edited by 68 Firebird; 03-02-2023 at 07:48 AM.