votec heads on 1992 ?

[canso]

I have a 92 chev 350. I want to install a set of vortec heads. I know this is pretty straight forward job. Although I have be told that you can not install the egr valve with the vortec heads and the engine will run to lean if you just leave it off. I was also told that all you can do to correct this is to order a custom chip from somewhere. Has anyone done this convertion on a truck with throttle body injection any ideas. Thanks