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geezer#99 · 07-07-2017, 11:05 PM

Sounds like all is normal.
Should be rich at full throttle when the power valve opens.
Only thing you might need to fine tune is the spring in the vac pot.

07-07-2017, 11:05 PM	#8
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,787	Re: 4.8 carb tuning help Sounds like all is normal. Should be rich at full throttle when the power valve opens. Only thing you might need to fine tune is the spring in the vac pot.