these damn things are impossible to find. everyone "thinks" they have them, but no one really does. well, i got a couple from here

http://www.racetep.com/

That's where I go for IDF parts.

They have everything I've ever needed. Lots of good info on their site, as well.

CB Performance products carry these as well as all jets needed. There is also an IDF update kit out now, CB sells that too. It relaces the bulls-eye venturi with horizontal spray bars and a completely new choke design..they now take a 40 and makes it flow like a 44-/- and a 44=48. Put mine on the other day--it is night and day. I thought I had the old 40's tuned pretty darn good--but this update kit takes it to a all new level

Pierce Manifolds Inc. (PMI) in California (in Gilroy I think???) carries Weber rebuild kits, got my 48 IDF kit from them last year Good people to do business with, very helpful.


dave

As of last week, CB performance didn't have these in stock.