ya want a supercharger check these guys out for engine upgrades and are working on a supercharger, but no information on it,but you could build a monster engine.MOES PERFORMACE.COM and hemishop.com,make your 348 in to a 370stroker and get over 400 rwhp or a 396stroker just a thought

cost but, you pay to race...then supercharge that ...oh then it's on,,now there are ways to get around the nazi computer,and dont have to use aux 9 and 10 injectors like what comes in the kits,now you can change all injector and use a piggyback to control timing and A/F,so far i hear all good things about it... but the TM still kicking our butts as of now.
so now maybe a 5.7 wouldnt be to bad,