my friend has a ls1 crate engine, computer, and wiring harness he is putting it in a 69 firebird who can he send thecomputer and wire harness to to get the harness cut down and the computer programmed?

 

There are plenty of tuners around and you should be able to find one close to you. For the cable rework, I'd recommend Howell Engine Developments in Clinton township, Michigan. Also, keep in mind that if the engine is stock, you don't need much reprogramming, other than to turn off some codes and adjust for some of the sensors and components that won't be used in the transplant. It's no big deal, so don't buy some bill of goods that you need a super high dollar reflash.