my 97 to a 5.3 conversion???

[MrEd]

You'll have to custom build a bracket for the throttle cable since the 06 intake won't have tapped holes for the 02 throttle cable bracket. Using the single inlet fuel rail isn't an issue at all, just use the Corvette fuel filter setup. Why would you want to switch back to the 5.7L engine, to sell the truck and keep the GenIII engine setup? That's a nice truck, I don't think I'd even think about getting rid of it.

my reasons is because i have a 93 coupe (mustang) and i cut all the wiring harness out and i could just kick myself in the ass today for it, i would like go back efi in the mustang now, i got rid of all the fuel tank, air bag sensors, cruise control, etc etc etc
and i swore i would never do that again.
i wouldnt sale the truck but you get my idea or point
but my truck i just dont want to do a hack job on it because it is nice.