When i was looking for pulleys it says not to use underdrive pulleys if you have a high powered sound system......because of that i have a problem cause i have 2 kicker solo-baric L7's with a 1000 watt Rockford Fosgate amp and i dont know if i can get pulleys or not??
I have heard that to prevent any problems leave the alt pulley the same and just change the others. Makes sense to me or get a bigger alt when you change them.
I put asp pulleys on my car. Wouldn't charge worth a sheiot. Ended up ordering a overdrive alternator pulley from march. Everythings fine now. Haven't had anymore problems since then. That was on my 79 tho.