This is my 1990 Ford mustang 5.0. I bought it stock and it has came a LONG WAY since then. AS of right now it my performance mods are: AFR 185cc heads, trickflow stage 2 cam, BBK SSI intake, 1.6 FRPP roller rockers, V-2 SQ Vortech supercharger @ 15 pounds, Full custom exhaust, 70mm TB, 42 lb injectors, 80mm Pro-M MAF sensor, UPR power pipe, 255 Fuel pump w/ a t-rex inline 255 fuel pump. I recently got the car dynoed and with the injectors (42lbs) and the stock igintion systems maxed the car made 523 rwtq at 5000 rpms and 540 rwhp at 550 rpms