Not much to say on that, other than that you're better off tapping in at the outgoing line than the incoming. How you have it now will tell you what your LP is pushing, but not what your IP is receiving. Not a huge deal, but the state of your filter can make a significant difference. I change my fuel filter every 5K with the oil, and in that last thousand miles I see an average 5-10 psi drop in pressure which springs right back to normal with a new filter.

 

ptfe tape is ptfe tape the yellow tape is just thicker. they are all Teflon.