My old Stang. 91 with SRP coated forged pistons, shot peened rods,stock crank, main girdle, 87/88 speed density cam, stock heads with 3 angle valve job and light porting by me, stock intake/tb, 5 speed, 3.27's, 255 MT DR, 70mm turbo, Megasquirt Plug and Play for Mustangs running speed density...