Hows it going, I am on another board of Sals and he asked me If I would mind posting this info here so of course I will. Since you guys have LT1's you are able to do this also, so here it goes. OK LT1 owners heres the deal, this is what you need. 1st the main kit, its availible from Pace performance for $2,300. This is the Heads , cam kit, Intake and all gaskets. 2nd A 58mm throttle body would get the most out of the kit, around $350. 3rd a good set of headers, this kit like flow, anywhere from $200 - $700 (depends on how nice you want'em). And last but not least a new PCM programing, prices vary shop around. So in all how does an extra $3,750 sound for 425 hp. And yes if you cant do the work well add in labor. NOt bad for the price HUh, no thoses rolling couchs can have some real balls . And dont worry not knocking the Caddies, I call them couches with Balls.