Big Block Tunnel Ram 660s Questions

I have the carbs off now. Just went thru them last night to make sure the jets and metering plates were correct. I can see if the secondary blades are closing. I removed the flat blade set screw for thr secondaries and replaced it with an Allen head cap screw to make that adjustment easier while they are on the car. Throttle blades are NOT drilled
Your idle speed is high because you are advancing the timing at idle by using the vacuum advance with manifold vacuum! Try this- set your idle speedscrews to expose the transfer slot(s) so they are square as they say, put themon the engine and fire it up and let it warm up, then measure your idle speed. Now pull that vacuum advance hose off and plug the hose temporarily, Your idle will go down.