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Bruce Lancaster · 08-26-2011, 10:51 AM

Look into fuel level and fuel pressure...I don't think minor jetting changes are going to have anything to do with this problem!

Two sidelights...if the thing is actually that rich, it is also wearing out its rings at a VERY rapid pace.
New ignition...what is it?? Whatever, run it up against a timing light and see if you have functional advance. There are lots of ignition problems available for purchase nowadays, and lack of functional advance will mimic over-rich to some extent.

08-26-2011, 10:51 AM	#2
Bruce Lancaster Member Emeritus Join Date: May 2010 Location: Madison, NJ Posts: 5,230	Re: 59AB with 2 x 97's get 5 MPG ?? Look into fuel level and fuel pressure...I don't think minor jetting changes are going to have anything to do with this problem! Two sidelights...if the thing is actually that rich, it is also wearing out its rings at a VERY rapid pace. New ignition...what is it?? Whatever, run it up against a timing light and see if you have functional advance. There are lots of ignition problems available for purchase nowadays, and lack of functional advance will mimic over-rich to some extent.