is the street avenger really worth the money, and does it really give you more performance>?

Yes and no.
A few of us here have them and love them but as far as cost goes, if you can work a carb your better off buying whatever CFM carb you want and getting all the trick goodies seprate.

If you're willing to spend that much money, get yourself a Demon.

Sure wish that's what I had done.

I bought one off Ebay and paid $290.00 brand new in the box. Well below the cost and this guy is alway selling them. Its a Dodge dealership running a auction. Mine was a 670 CFM Avenger New.
dtl504

how good do they respond to the adjustments you can make to them?

I have yet to install mine, still in the process of reworking the front and rear end. However here is the same guy that I bought mine from on Ebay and the Reserve Price is $275.00, If you really want one, sign up for ebay and use Watch This Item, then on the last day (8 may@ approx: 0835 Eaterern Time) in the last few minutes of auction ending place your max bid you are willing to pay. When I won I bidded $302.01, however the price to when the bid was $290.00. This is called Proxy Bidding. Just remember Ebay is in Pacific Time Zone, so you must adjust from your time.
Good Luck.
DTL504

http://cgi.ebay.com/ebaymotors/ws/eb...481688&r=0&t=0