guero ~
did some tuning stuff this weekend and popped the cap off my carb and pulled my jetting config. this is what I'm currently running:

(prim/sec)
Idles: 75/65
Mains: 155/150
Airs: 180/175
Screw: 2 turns, little +

this is with the Offy Dual Plane manifold and a K&N round air filter. I just put that "old" filter on while I was waiting for my Ramflo filter to dry. the Ramflo is a foam filter. I think it's the highest flowing air filter you can run. I noticed that it seemed a little sluggish when I put on the K&N; my A/F meter was showing that it was actually running a little bit lean, which really doesn't make sense to me. I'd think, less air, run rich, right? unless, of course, the K&N flows more air. don't know.

anyway, it had 150/150 mains in before the filter swap. AND, I'm considering trying the stock air cleaner assy which should choke it out a good bit, so I'll probably have to rejet again. the reason I like the stock air cleaner assy is that it pulls air in from the front of the vehicle; cooler air, that is. that's what I hate about the Weber setup; I'm just sucking in hot engine bay air. was toying around with the idea of a functional hood scoop or some quasi snorkel thing, but eh.

anyway, food for thought.
guess I'm officially back to Weber tinkering

Hows the Offy 360 Dual Plane working out?

In my experence the K&N air filters flow real well and clean real poorly. I add a piece of UNI foam over the top of mine to increase the filtration.
It still flows plenty of air, it's just cleaner.

I don't really have anything comparable to compare the Offy to. I've been thinking about playing around with the stock manifold though, so if I do that I'll post my findings in the write-up.

how do you know the K&N doesn't clean very well? you keep it cleaned and well oiled, yes?

what's UNI foam and where do you find it?
sizing and such?
part numbers?
photos?

so a pre-filter?
something like these offered by Summit Racing?

I was thinking this morning about having to rejet my Weber last night and increase the size of the primary main jet. all this time I've been assuming the Ramflo foam filter flows better than the the K&N, but the fact that it went lean after swapping to the K&N would indicate more air, leading me to think that the K&N flows more air than the Ramflo?