switch over to 4 barel and headers

[2 Darts]

Yup, volare clip, boxed frame, C-notched rear with an 8 3/4.

Hey dgc333, I read somwhere that the 390 double pumper was a Nascar carb and hard to find, do you have anymore info on them?

Yep. The 390 is a 4150 that can be converted to 4160 specs. (4150-8007) The carbs and conversion kits are available at Summit and PAW in CA. Though it is a NASCAR carb, it means NASCAR approved for use in certain classes. The carb I'm quoting has air valve secondaries and an electric choke. Would be a good setup for an Offy and a little more cam.