Should I Run A Carb Spacer?!

If you have an auto trans, the linkage will get pretty out of whack with a tall spacer. Don't forget, your intake manifold is, in most cases, taller than the stock one already. For the control of heat, a 1/2" spacer should be enough. The throttle cable itself is pretty easy to adjust or modify. Tall manifold + tall spacer + aftermarket air cleaner = hood clearance problems, and/or throttle/transmission linkage problems.