phenolic vs wood carb spacer

Moparmarcus said
Wooohooo. Now we're debating. Being an old hardwood flooring guy, it's just a no brainer to make a wood spacer. Plus I already have marine grade polyureathane (think Bar Top) for the cut edges. I also am a little leary of the sealing capabilities of phenolic as evidenced by all the Thermoquads I haev owned over the years. Thanks for all the input!
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The only Thermoquads that had warping problems were those used on cars with catalytic converters where underhood temps were so hot they warped the plastic bodies. They are plastic, not phenolic. They got a bad rap because they were used more so on emissions vehicles when their potential was so much greater.