Slant 6 Wooden Carb Spacer?

I've built wood spacers for many cars with great success. One was on my 72 BB Charger. Definitly more heat isolation than alum and the same as Phenolic but less expensive. I use 1/2" 9 ply cabinet grade plywood and glue pieces together for more thickness.The best way I have found to seal up the vacuum leaks from the grain is Mopar ATV sealant applied to the outside. I wouldn't use solid, unlayered wood because of the splitting and warping issue. Used them w/ and w/o gaskets with same success. Later