Well, first off...... A regular Holiday Inn won't cut it. Gotta be a Holiday Inn Express - nothing less.
On my 2,110cc with an Engle 120 cam, extractor exhaust, 044 heads and Dell 40mm carbs, Dave at Blackline just dropped me from 34mm venturiis - note spelling - to 32mm versions. He also decreased the idle and main jets to go along with them and then ran them in on a 1,915cc engine.
Made a world of difference.
I'm hoping you see the same results on your set-up - You're heading in the right direction!