Still looking for a good intercooler so i went ahead with the larger throttle body adapter install. It was easier that i thought it would be. I made the adapter out of alum scrap i had as i did not have a large enough scrap of composite. Still need to clean up the outer diameter of the adapter for looks but as you can see it fits. Not sure where they measure these throttle bodies for size but the throttle plate is 3.14+ a little hard to measure so i guess i will call it an 80mm. Also after i made the adapter i installed it on the blower intake and used my die grinder to open it up to 3 1/8" and port blend the intake. Good thing i use to port race heads so it was super easy. It took me about 6hr total to do this install all with hand tools, circular saw and drill press. I know its not an 83mm Tb but i feel it could of been done but would have to use Devcon epoxy at the intake & adapter seam for an for sure seal or weld it on