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geezer#99 · 05-29-2017, 05:02 PM

Is your carb a vac secondary copy of a holley?
Have you verified timing tab/balancer marks?
Did you flush out (hot tank) and redo the motor when you put the new cam in?
Have you tried more timing?

05-29-2017, 05:02 PM	#2
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,777	Re: 1972 402 stumbles under load Is your carb a vac secondary copy of a holley? Have you verified timing tab/balancer marks? Did you flush out (hot tank) and redo the motor when you put the new cam in? Have you tried more timing?