my car is pretty stock:
what i believe to be a b-cam
long tubes
full exhaust
subframe connecters
cold air intake
electric fan
king cobra clutch
pro 5.0 shifter
blah blah blah. basically every budget bolt on you can do to a mustang. i'm looking into twisted wedge heads, a bigger cam, roller rockers, and a manifold... as far as how much HP i want to add, i'm not sure.. goal is to make my car run 12s (in the low 13s now).. i have a good bit saved up now, although with my car getting painted in the next 2 weeks some of it will be disapearing.