Another question I have is on engine mounting, and the clearance between the firewall and the carb. I just received my new Hanger 9, 2 pc aluminum engine mounts. They have slotted rails, and with the engine mounted as far forward as possible, I will have a clearance of 15/32" to the firewall. The choke, when open is about 3/16". Is that ok? Should the firewall have a hole, say about 1' in dia. for more air to the carb? I hope this doesn't sound like too dumb of question.

Lamar