CAN ANYONE TELL ,ME WHY I HAVE TO IDLE AT 1350 TO GET 750 IN GEAR? My camaro started acting crazy 72 chevy 350 268 comp cams stock heads except for noisy stamped steel roller rockers headers eld performer rpm intake 600 vac secondary 18 degrees initial 34 total 11 inches vacuum it shakes in park like a miss and in gear i dont think it should shake like that ....the cam aint that big oh yea stock dist runs like a bear just idle like shit help