Hey guys,looking for some help.I recently swapped out the th200 trans in my 79 2dr malibu to a th350 trans and now I have a problem with my car idling too high and a bit rougher It idled fine before the swap.It has me stumped.it has a carbed q-jet 4bbl 305 non computer non lock up vac hoses are all intact and in place and the throttle is alll the way closed (set screw on carb)I have the vac modulator hooked up to the back of the carb at a full manifold vac.source what could I be missing here?Any hgelp would be appreciated.