Not to be a pedantic little shit but do you have numbers to back that up because honestly that sounds hard to believe, but even if they were the Vorshlag kit alone costs $3500 then factor in having the custom driveshaft shortened, actually buying an LS1, custom exhaust, then having the wiring and everything done and it's WAY above what I would want to spend just for 250whp. It's down to the SR or a 302 at this point, the 302 sounds like the cheapest and easiest option at this point.