i was thinking about a blower pulley....wat do u guys recommend best for a bone stock motor......also wats the differecne between a lower pulley and upper .... most people say to replace the lower and i think that is the pulley at the crank but not sure .... i was intending on replacing the upper one and i think thats the one on the supercharger....i was just wanting some advice and wondering wat would be best for the stock motor......also will this be really hard on the supercharger or motor by doing this? thanx guys ...

 

Upper pulley is the supercharger / Lower pulley is the crank

I would go with the lower pulley, when you change the upper your going with a smaller pulley to spin it faster and you increase the chance of belt slip. Most will tell you to go with a 4lb lower. I would recommend 4lb or 6lb, but no more on the stock rods. I have run a 6lber for almost 2years no problems and many 1/4 mile passes. Happy modding

 

Get your self a "chip - filter - pulley" kit and you'll look like this..

(get a 4# lower and it'll be perfectly safe on a otherwise stock motor)

Rich