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rfmaster · 07-03-2009, 12:01 PM

7789

What you are describing is a classic low fuel pressure symptoms. After 20+ years of service either fuel pump or the hose that connects pump to to the tank feed through are getting tired. TBI system is designed to operate at about 13 PSI, but will still function down to about 4-6 PSI. In other words.

Check your fuel pressure at TB
Check fuel filter

//RF

07-03-2009, 12:01 PM	#5
rfmaster Registered User Join Date: Oct 2003 Location: OC CA Posts: 1,374	Re: 87 running lean? 7789 What you are describing is a classic low fuel pressure symptoms. After 20+ years of service either fuel pump or the hose that connects pump to to the tank feed through are getting tired. TBI system is designed to operate at about 13 PSI, but will still function down to about 4-6 PSI. In other words. Check your fuel pressure at TB Check fuel filter //RF __________________ "The Beast" 1975 Chevrolet C20 longbed 350/700R4! with 3inch body lift Dual Flowmasters Super 40's! TBI retrofit completed (2007-07-29) New 383CID (+030) 08-304-8 9.5:1CR x36,005 (2012-12-17)