I priced a 2100 one time at Autozone and the price was about 500 bux. So, I got a used one off Ebay for less than 50, and rebuilt it myself for about 25 bux. That was a few years back and she still runs like a Banshee Indian. These 4100's don't turn up very often on Ebay. Yeah, the 4130's do, but not the 4100's. At least not for that price. If I had a Weiand, I might consider throwing that puppy on Ol' Yeller. Nahhhhhh........