I would not do forced induction unless you have 10k laying around by the time you are done with the parts tunning install clutch and fixing what else broke you will have at least that much in it. You can get over 500hp all motor fairly easily with the Ls3. I had 500 with the ls1 all motor. My experience has been that if it wasn't built for forced induction it will just be a matter of time before something goes.