[tortuga]

I have a ford racing 427W, its mounted on Olthof motor mounts (without the shim) no vertical spacers, the manifold is a Super Vic, carb is a 750XP.

I have a 1/2" and 3/8 spacer (HVH and insulation), with a 2.5" round air filter element in a 9" diameter air cleaner, with a flow through top (not shown).

It all fits into the scoop with about ~3/8" to spare.

NOTE Its pretty tight but the Olthof poly mounts don't allow much if any movement with torque, yet don't cause any droning or anything of the like...

One trick that gained me about an additional 1/2" + of clearance was cutting off the flange on the air cleaner base, this allows the base to sit just above the carb bowls this limits you to a 9" round air cleaner on a long bowl XP anyway- see pic