Help with squeeky belt, it's embarrassing

[Primo]

I changed my pulley on my supercharger from a 3.5" to a 3.3" and I put a new 1073 Napa Gates belt on. I noticed that this belt was at least 3/4 of an inch larger with the same part numbered original Gates that came with the Novi Anyway, I've had this belt on for about 3 weeks now and it started to squeek. Does this mean there's too much slack in the belt, or is it just a POS and I need to start over? As soon as I sprayed a little belt dressing on it, the sqeeking temporarily goes away. Therefore, I know it's not a pully or pump. Any ideas?

 

[46gtsblown]

Get a smaller belt. look at the tensioner there are 2 marks on it. When they are ligned up you have the correct belt installed.
With a belt too long you are probably getting a lot of belt slip also which is going to cost you power.

Dwayne

 

[DBMSTNG]

when going with a smaller pulley, you need less, not more belt. so get a new belt. Cobra killer will be able to help you.