i'm looking to have a 90 or 91 rs with 450hp/460tq+, a 6-speed tranny, and 456 gears. i am looking for recommendations on suspension and chassis stiffeners. thansk!!

 

Sub Frame Connectors, 1LE 36mm front/24mm rear sway bars, a steering brace "aka Wonderbar", Strut Tower Brace, poly bushings. Also, Kenny Brown has a Lower Chassis Support Brace that should help. If you want to increase handling even more, go with some Eibach lowering springs and some stiffer shocks and struts.