IDF vs. IDA?

[Dangerous Doug]

What's the difference between a IDF Weber and an IDA Weber?

DD

[Dangerous Doug]

Anyone?

Bueller? Bueller? Ferris Bueller? Bueller?...

Or, to quote Pink Floyd, "Is there anybody OUT there?"

[quickjack]

IDF is a street oriented carb with choke, IDA is a race oriented carb without choke.
IDA is the traditional Cobra type carb.

[rochester bob]

Doug, you are right but most of the 48IDF's do not have chokes. I've got 48IDF's on my car and I think they are a little bit more streetable.

[JCMurf52]

Rochester Bob, what size venturis do you have on your 48iDF's? I have a 48 on a 302/345hp crate engine and my mechanic is telling me to get 34 MM venturis. The car idles perfect, great when I punch it but cruising between 25-3500 it is sluggish.
Thanks
Jack