Have a 500hp 460 in a 97F150 how do I go about reprograming the ecm with the new specs. Engine is bored over .30,weland intake, flat top pistons, 98cc heads exhaust ported, cobra jet cam hyd
5speed trans
Painless wiring harness TBI
No EGR valve

 

Send it out and have it flashed. Lots of companies do this

 

What would be a good companies to send it to. I have all the specs on the engine built it myself

 

What PCM does your truck have? Is the truck still OBD2? What EFI system are you using? I'd suggest getting the PCM catch code and then see if the Moates Quarterhorse supports it, and if so get one and the software package called Binary Editor and do it yourself. Doing this involves a lot of learning but you'll spend a lot more time and money getting trying to do it the other way.

 

Just google it, even painless wiring does it. They can do just about anything to it