installing a turbo
 

when installing a turbo on a 1999 3.8l camaro is it a good idea to upgrade the injectors and fuel pump.

Theres alot more than just that, but yes, those two are musts. If you've got more air, you need more fuel to burn it. Simple rationality.

I'm sure this question has already been asked but do you know any pre turbo ugrades that are necessary.

use the search feature.. its been covered many times. If you still cant find it, then someone will explain it here.

cam should be changed, heads reworked, pistons should be upgraded (stock pistons are not designed for boost and new ones are cheap insurance) bearing clearances should be checked