Reply to "4 x Weber 48 IDF (not IDA) conversion"

Most (not all) intakes made for the 351C in Australia feature 2V ports with enough "flange" around the port to allow them to bolt to 4V heads. Kinda the way they do things down under. The reason being that not too many 4V motors were sold in Austalia.

Weber manufactures low profile air filters for the 48 IDF carbys. No choke system that I'm aware of however. Gotta sit and blip the throttle for a minute or two. Sounds so bitchen, its actually a pleasure to do so.

Dougs suggestion about the alloy 2V heads (CHI, AFD or Edelbrock) is a good one. Not only will it look better, but the 2V heads flow like ported 4V heads, but have 2V throttle response. Good looks, good throttle rsponse, good power and lighter weight. I doesn't get much better than that.

Marcus to answer your question about the power brake & dizzy vacuum sources, you've probably seen Weber installations with a bunch of 1/8" tubing lines neatly bent so as to hook to each intake port and join together in a little block, either at the back of the motor, or in the middle of the manifold. Those aren't nitrous lines, thats a little vacuum manifold system. See the picture below.

I e-mailed the Australian company that is supposed to be reproducing the Cain intakes, and am waiting for a response.

cowboy from hell