Ever since doing a port job on my heads (TA SE stage 2) and intake (TA SP1) and putting in a new cam (TA "The Gibson"). my car went from 11.9 to 13.4. it now seems to like ALOT of timing like 30 deg. initial and 50 total. my mechanic friend suggested that my plugs may not be long enough. anyone have ideas? could i have done THAT bad a job on porting my heads? all i did was take out the rough spots and gasket match all the runners.