wow.. this topic has been covered alot.

SR's with stock bottom ends are typically good for 400-450 at wheels daily driven

some people have made more. Scott made 540+rwhp and others in the 600-700+ range.

yes, you can get motorsets for under $2k, but you also need an intercooler, radiator, fuel pump, labor, etc.... the motor itself bolts right in, but the harness doesnt plug right up. youre going to have to get someone to heavily modify it. we do all mail order harness work.