Plastic And So-Called Phenolic Carb Spacers

I just bought a phenolic spacer for a BBD geared towards Super Six applications (as he had advertised, and thats what its being used with) Got it on Ebay, I saw them advertised for sale either here or the /6 site, dont remember which. Well see how that works here shortly. I did have to enlarge the holes slightly, to get it to slide over the studs on the intake.
I do have a couple of other some sort of plastic 4 barrel spacers here new in package, dont remember the brand, but the packaging is red if that helps ID...
If I go with the AFB on my Fury Im gonna use one. and try it. The bane of AFBs for me has always been percolation and hard hot starts, fuel boiling out of the bowls when shut off.
Phenolic must be an ok insulator, that was the selling point of the TQ, right? Yeah I know, they sometimes warped.
I looked into buying a 12X12 or so piece of solid 1/2" phenolic plastic (thinking of making my own spacer) and it is crazy expensive. I did make one out of wood (oak) once/ and yeah it worked.