LS3 Wiring Harness, PCM, TCM

[ford396]

Help! I have been working on my build for just about 1 year. I have a stock LS3 with a 4L85 in a Ventura. I am wondering who is the go to company for wire harness, PCM, TCM. I am going to pull heads, change cam, springs, and build custom headers.

I am assuming that it would be best to get the modules from the same person as the harness? Can someone program my modules to be very close to the selected camshaft?

I want to change the cam to get a little bit of the rough idle, thump. I also want to get 500 - 550 flywheel horsepower that is drivable at 2000 rpm and get good fuel economy. Am I asking for too much? If not, I am looking for camshaft recommendations as well. Is it worth it too change pistons too get more valve relief, or is this not required at my power goal?

Any input on camshaft, company for modules and harness would be appreciated.



Thank you

Bob