From this thread..
"If you decide to delete the air induction system, you will have to block the ports that feed the fresh air to the exhaust ports and that can be done with either high temp epoxy (Scotch did it that way and still holding up ) or drill/tap/plug the ports."
Sir Kawboy
Is that because if one uses material other than metal, e.g. plastic, the hot exhaust gases traveling up passageways might burn/melt the new cover plate?
I removed the air induction system. Running stock reeds and cover. Hose fitting hole capped off.
Wondering what results would be if a feller removed AIS and reeds, ran a blank off cover made of 1/8" aluminum?