I am new to gas engines. Could someone please tell me what temp the muffler should run so i can pick a gasket material? Also do you have to use muffler pressure tap to vent fuel tank or can it go to atmosphere, the tygon tubing melted on my muffler tap.

no gasket or pressure tap is needed on a gasser just vent out the bottom.as for gaskets i just use red hitemp silicon and never look back

thanks man, i sure appreciate the info.

if you are going to use smoke then use neoprene to the muffler tap