i can only find a 3/8 inline fuel pressure adapter on summit's site. i found 5/16 adapter from FlatlanderRacing.com, but there's a minimum order of $30 from the manufacturer. i can also buy some barbed fittings from home depo and make my own. from searching the site i will probably go that route, how would you seal the threads 100%. on air tools i use teflon tape for all the fittings. can i use teflon with fuel?