Carter YF on L6-226 won’t idle

Checked throttle shaft for wobble, seems ok. Removed and cleaned dizzy and base, replaced all ignition components, plugs, points, condenser, cap, rotor, wires, coil and set. Still idled fast and unable to slow down with out stalling.
BUT I seemed to have found the idle problem.
Did some reading here on ‘scoutpilots’ old Jeep carbs site and investigated the holes or lack of holes in the carb kit supplied base gasket. Great info on this forum. Thank you!
I find there’s a spacer block and two gaskets one on each side of the block under the L6-226 YF. There are notches in the spacer block, slots in the under carb gasket and nothing in the under spacer gasket. There are no ports/holes in the manifold base under the carb. All the notches/slots lead directly into the throat at the spacer block.
So looking at the throttle base I see 2 holes, one leads to the dizzy vac advance port and the other leads to the idle mixture needle screw. The new supplied carb gasket I used has a notch for the idle mixture but no notch and thus it closed off the dizzy advance. So as not to destroy the new carb base gasket (in case I needed to revert to it) I hand made a replacement with holes for both ports to the manifold throat.
Installed and it solved the idle problem. The dizzy vacuum advance was off.
I was able to set smooth idle and mixture needle to 650 RPM (manual says 550 but I remember Bernie (god rest) a local WW2 Navy Pearl Harbor vet old school carb expert I used once told me “the book isn’t always golden, use it as a guide and set your carb to YOUR engines best smooth idle.”
With a reasonable idle I’ll next plan to replace manifold gaskets (the gasket joining the intake manifold to the exhaust manifold is leaking and noisy) and adjust valves. Then I’ll set timing using Scoutpilots no timing light method.