My 87 has an upgraded 1992 5.7
TBI chips prom in the ECM
Camshaft that "TBI Chips" recommended
New Injectors
Complete dual exhaust with Mustang full flow cats,stock manifolds
400 Turbo (375) with a shift kit
3.73 rear end , 31" tires
Starts every time , reliable , decent fuel mileage, good power, even tows decent.
I will tell you the cam change and computer upgrade was the most notable performance upgrade, better power curve and performance. But also had mpg increase, showed how lean the factory setup is.
