1" Carb spacer

Thanks for the reponses. I have a 1" open currently , I'll pick up a cheap square 4 hole to try as well. Now the question of clearance with stock air cleaner. Will it fit without the spacer ? Where can I but a lower air cleaner base ? I'll try and measure the clearence now and add the added height of the airgap and see what I come up with.
Thanks again all .