Try putting on a vac guage on the ported and non ported ports on the carb you are using and start the engine. If I remember correctly the 235ci with the Rochester single barrel pulled about 5-7 lbs of vac at idle thru the normal vac advance hook up. This vac will be different than the advertised direct manifold vac of 17-22. Hope this helps.
"Drugs are money, money is power, power is security." - Kent Heiner
Nedrow population 2212
Carbon footprint family of 2/11 tonnes of CO2/yr
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