View Single Post
Old 06-25-2013, 05:26 PM   #11
speedygonzales
Registered User
 
speedygonzales's Avatar
 
Join Date: Jan 2006
Location: Smithfield, VA
Posts: 1,501
Re: Unknown facts regarding replacement 1st gen. Vortec MP fuel systems

58 is below spec for OEM. The replacement will be even further away from it's new spec of 55 -62. I would put money on it.

Also I thought mine ran ok until I brought the pressure up to the new spec for the new unit also.
__________________
99 Z71 (98 body style)
Pride and joy
speedygonzales is offline   Reply With Quote