Quote:
Originally Posted by James McClure
If the damper has in fact shifted, replace it!! That outer steel ring can do alot of damage should it exit the hub at 5 grand, been there!! Also, I was a Chevy mechanic for 33 years and I know for a fact the vac advance supply is from below the throttle plates not above. It needs manifold vac NOT ported vacuum. Find a port on the carb where full manifold vac is available at idle. Leave vac line off when you time it then reconnect line when timing is set correctly. My 84 gets 17 MPG with a Q-jet on a 350 if I'm real soft on the throttle. jim
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Some other threads about this.
http://camaroforums.com/forum/archiv...hp/t-3803.html
http://67-72chevytrucks.com/vboard/s....php?p=3274562