proform race carb / Idle trouble

I tried idling from both the primaries and secondaries, but could not get it to work properly. The Engine was a new one with good cylinder heads.

Cory: the carb was very clean inside when i got it, so i did not even think about a closed passage in the metering blocks. You should check these again

Another thing to consider: the hose connection on the backside (brake booster) did interfere with my EDE-manifold, couldnt put a hose on. After putting a 1" spacer in everything was ok. Do you have space around this port? This could create a vacuum leak.

Michael