5.2 5.9 magnum EFI plug and play harnesses

yeah...

66plyvaliant is your guy if you want to use the 88-91 style, 2 injector, LA engine style of fuel injection. That might be the easiest way to go for you, but (and most would agree) TBI didnt really make much improvement over a carb, other than easier starting. power and mpg arent really there

if you want multi-port injection (the 8 injector kind), then my harness is what you need. you also need an actual magnum engine though. Its an easy swap, as it bolts in just the same as an LA engine. Just drop the Magnum in place, plug up my harness, splice in a few wires, drop the tank and stick a pump in it, and drive it. Lots more power, better mpg, easier starting, and cool looks.