48 IDF Webers, has anyone completed a running driving setup?

I have run 48IDF's on the 302 in my Autokraft Cobra since 1992. Great and smooth with no problems. Stock 9.0 to 1 compression, Ford Motorsport GT-40 aluminum heads, B303 Camshaft. Produces about 350 BHP, dead smooth idle easy starting hot or cold. I can give you all the jetting specs. Run 40mm chokes. I realize this is not for a 351 Cleveland, but you can make these carbs work better on the street than the IDA's due to the IDF having a better transition system from the idles to the mains. This is the key on street driving.

Hi DWR46, thanks for the reply. I have been told they are not big enough for a healthy 351. eg. 6,500/7,000 rpm 500hp. I've had a set on a 351c but it had a very small cam and was only revved to 5,000 rpm.

GT-Pilot: You have a point. We run IDA's on our 289 Cobra vintage race cars and usually use 42mm chokes. I have dynoed a set with handmade 45mm chokes on the 289, and they do produce more power, but the overall area "under the curve" was not appreciably better. We build our motors for a very flat torque curve and do not use lots of revs, as in vintage racing, you need the torque to pull you off the corners. I would think you could experiment with 42-45 chokes on the IDF's. The Weber factory calculation for single barrel per cylinder choke sizes result using 351 cu. in. in a 43mm choke for a 6,500 rpm power peak and a 45mm choke for a 7,000 rpm power peak. You could probably make a set of 48 IDF's work with these combinations.

DWR46, here's the issue and partly why I asked the question. 48IDF's have a maximum choke size of 40mm. The outside dia is 45.85mm, let's call it 46mm. So the wall is 3mm thick. You could machine the chokes 2mm to 42mm leaving a wall thickness of 2mm. But then it's not going to have much of a venturi effect. Now may be the booster venturi on the IDF is better flowing than an IDA so you have a bit better flow there. But it all seems a bit smallish!! Hence my original questions. There are a few manifolds made or have been made for IDF's, so that makes me think may be they work. But like I keep saying show me the evidence! Cheers