1990 mustang 5.0 transmission upgrade question? T-5 or Tremec TKO 600 extra HD?
I got a 1990 5.0 with mods like Ford racing E303 cam, Holley 650 carb., under drive pulleys, stage two clutch, eldebrock rpm performance intake, ford racing distributor cap, 3.55 rear end gears and hurst shifter. im wanting to buy a new transmission but idk which one to is right for my car cause im going to upgrade it more in the future. Im torn between a T-5 or TKO 600 extra HD so whitch would be better for my car.