ok so here we go i have an 87 mustang 5.0 with efi . it starts up fine idles good once i drive for a bit it chokes out like it has no gas. i go to the schrader valve and check to see if there is fuel pressure and there is BUT its way too much the gas is almost boiling hot and there is alot of air in the line. i bleed all the pressure out of the fuel line and it fires right up few minutes later it will die and i bleed out the pressure and it fires right back up. any thought or ideas are appriciated