Yes, but where?big red 1 said:it was hooked up to the carb.
I agree. You did not state what your total mechanical timing was @ what rpm. I run 36* all in by 2600 rpm. Got the PROPER vacuum can to give me another 14* at 11" vacuum (idle vacuum is 13" - bigger than stock cam) and pipe it to the manifold vacuum port. The ported vacuum port came into being for the smog stuff.olescarb said:it sounds like the vac advance unit has too much advance for your engine and fuel paqckage. depending on the type of distributor you have you can limit the advance from the vacuum can. we limit the advance from the vac can to 10 degrees, on a hei style distributor we use ac/delco unit # D1370a or on a points/msd distributor we make a bushing that goes on the vac advance pin where it goes into the distributor plate to limit the vac advance travel to 0.120" or 10 degrees. you can just disconnect the vac advance if you want but it can hurt the fuel mileage if the car is a daily driver
henry @ oles carb