with this set up will i NEED a Idler pulley to limit belt slip if i go with a 6lb lower and a 2.95 BF upper, also how long can i run the 6lb lower with the stock Alternator Pulley SAFELY, can it go roughly a week or 2, wont have a 3.5 alt pulley till then but will have the 6lb lower installed tues and the stage 4 blower installed friday... what other supporting mods other than MAF.ia will i NEED to safely run this combo vs down the road upgrading fuel system... also ordered SCT XCAL 3 from Amazon so rick is doin the tune on it, what kinda hp/tq numbers should i see?!?! :shrug::shrug: THANKS GUYS!!