Underdrive Pulley thoughts

Originally Posted by DEpointfive0

Hey guys,
I am considering installing an underdrive pulley kit, I have the Stillen one, and I am considering doing that with a custom NST O/D for the alternator or just buying a full NST kit. Everyone in my local group says NOT to do it, and only one person has, but he doesn't DD his car like I do...

What I do need to know is:

Who has installed it?
How many miles ago?
Any changes?
Any problems to report?

This is NOT a thread to bash a particular manufacturer, and I almost do not want Stillen or NST to post unless they say they will warranty my engine if one of their products causes it to go bang...