Hi all, I am going to send out to have some spacers made for my Model 94 carbs. I'm putting together two 3x2 systems, one on a Y Block and 1 on a 350 SBC. I want to add about 1/2" spacers to get the carbs up off the manifold to reduce the heat. I'm thinking they should be made from a good hardwood. What would you make them from?