hear hear on the Poncho 455! The torque of those engines is phenomenal. What a magnificent truck engine that would make. I've even seen one guy modify a 389 tri-power intake to his 455. If you do that, the 455 would be anything but a bellybutton, cookie cutter V8, and you'd need a supercharger on a 350 to make as much torque.
On my Firebird's 455 (465 actually) I pull down 14 mpg, which is the same as I get on my 235 in the truck.
Mike Vee, I'm not opposed to EFI for my truck's 235, I just always thought it would be prohibitively expensive. You mention junk yard parts to assemble one. Like what? I know they did a lot of EFI on the Jeep inline 6's. The firing order might not be the same, but if it's batch fire (which is typical for Chrysler), then it might still work.