It helps Cliff! Still wondering why someone would choose to run full vacuum after reading this all? My carb vacuum ports are way down low and are tested good so I won't have that problem I think. Seems like both sources are the same off idle, but during idle is the only differance, and that would be the full vacuum adds timing at idle while the ported does not. Right?
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Trent
1968 Firebird 400 Coupe
Muncie M-22 "Rockcrusher"
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