aim4squirrels just put pullies on and notice a good gain from it

 

I blame Aim for me getting my underdrives from Hughes(lol j/k). Seriously, if you looking at them as the "magic potion", well keep looking. They are a snap to install, and other than dealing with the knuckleheads at my local parts stores try to match up a belt,(If one more of them said to me, "well that number doesn't come up for your vehicle", I was gonna stab them in the eye) I found the process quite easy. Now the bottom line, the butt dyno notices a little more jump off the line and thru acceleration. On the highway with the cruise on at 70 it has dropped 200 rpm(more to wheels=less engine work=less rpm). Passing on highway is smooth and takes less effort on pedal. As far as mpg's? Not sure yet installed them on a 1/2 tank of gas,next full tank I will compare to prior numbers. Bear in mind, most of these mods are little boosts than in the end add up. You want 500 hp? spend the money and build then engine you want. One thing I learned over my years there are no "magic potions","overnight transformations", or " 5min/1000 hp kits".

 

I like mine It was a 2pc kit if you get them leave the belt on when you take the nut off the alt pulley it will make it easer.

 

The belt I got is 95-3/4 long I got the 2pc pulley kit but aim got the same belt and he only got one pulley so it should fit many kits the #is 25070951 hear is the link to it on the napa site http://www.napaonline.com/NOLPPSE/(S...951_0244260199

 

i found another set from summit for my truck 157 and change comes with the altinator pully and the crank pully and the belt. so you all are saying that if i dont have the alt pully then i might have issuse with the chargeing system, and if i get the alt pully i won't. now i havent seen the set with the water pump pully yet what will that do for the motor?

 

i know theres no overnighters i am just looking to gain some if any of my stock ,lol, mpgs...