talked to Mallory today and their recommendation is a -10 fuel feed line , -12 return line with my 4309 bypass regulator and comp 250 that I have been using. My existing comp 250 pump -8 feed and -10 return which Mallory states is good for 200 gph which is about 500 hp , unless fuel line size is enlarged.
Braided line and fuel fittings expense will drive me up the wall now. lol
I may go dead head with my existing -10 for a feed to save a few bucks on this fuel delivery experiment to extinguish the suspect gremlin.
get me one of those distributor collars installed fuel cell vent and on the way back to the track one day