i am going to be replacing the stock cam with a comp XE 282 roller cam and i know that when i do i am not going to be able to usemy stock ECM so who makes a going custom ECM?

with the cam change i am also replacing the stock heads and manifold with vortec heads and a vortec manifold

other mods include

flowmaster american thunder 3" cat back exhaust
and eventually headers of some kind