Dropped base for unsilenced 340 air cleaner.

Guess I am lucky with my 383 and TM-6. The factory unsilenced cleaner does leave a mark on the hood insulation. I ran a Moroso drop cleaner for many years and only had to round the top of the kick down rod link end a little to clear it.

Have you checked to be sure your engine mounting is square and level on the K? Does it mark fully or just on one side of the insulation?