car: 89 7mgte stopper head gasket, 550's afpr, walbro, lex afm, sp61gt on stock waste gate (14 psi). afpr gauge liquid filled, no 12v mod
when i jump the fuel pump from the diagnostic box, it reads 50 psi, at idle its reading 38psi wit vac on/ 44 psi vac off, my vf values are a flat 5v at...