Intake and carb isn't killing it that bad unless the a/f ratio is whacked. The 60' is s l o w. You should be in the 1.7-ish range. Unless you are spinning the TC is too tight so the new converter should help unless the car's spinning.
Pay close attention to the shift points. Most guys over rev the engine thinking they'll go quicker if they tach it out to 7K rpm. You want to shift about 10% past the power peak.