Re: Proper psi at carburator

Posted by PackardV8 On 2011/5/4 7:00:01

From post #1 above:
"however the carb still runs out of fuel when I go uphill or faster than about thirty mph or so..."

THis is a symptom of an ethanol swollen needle valve. The needle valve is most likely "rubber" tipped. Wrong compunding of the rubber for ethanol compatability. Replace with a SOLID tipped needle. DO not trust ANY "rubber" tipped needle.

When the 'rubber' tipped needle swells it causes the float level to drop dramatically causing a high speed lean condition.