Thanks AV8TOR for all the replies!

I am currently building the carb adapter. I've gotten a little discouraged discovering how expensive the recommended materials are (G10, or 1/2" stock aluminum). I think I am going with aluminum, being cheaper, with a separate 1/8" or so insulator. I like the sounds of wood due to cost and insulating properties. But yet again finding high quality plywood of 1/8" or so thickness would probably mean ordering it on-line, paying for shipping and all that jazz. Could I either use just solid wood or laminate my own perhaps. I'm all set up with a wood shop so working with the raw stuff is no prob. Hard or soft wood? What is best to coat the wood with to protect against gas (epoxy?)