Ok, one more question on the Holley jetting.

It'd be nice if I can figure a good way/place to make the IFR manually adjustable for only the transitions from the outside of the metering block with a needle similar to the idle mixture only smaller.:D
Actually there are a few versions of a system where this can be done.
It's pretty cool.
BLP is the current manufacturer, and only on a limited basis. Give 'em a shout if you want one.
Something a little different
RapidJet blocks revisited