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Old 10-18-2021, 11:09 AM
markpj23 markpj23 is offline
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Join Date: Sep 2006
Location: Las Cruces NM
Posts: 390
Default This Is Not Normal....

New to me early 70s 400 is throwing what I believe is a LOT of soot out the exhaust. It starts, idles & runs fine except that it does not seem to 'get up and go' when I put my foot in it - meaning that I don't really feel the secondaries kick in.

Has a Holley carb with vacuum secondaries and an electric choke. The choke seems to work fine and drops out shortly after a cold start. Engine runs fine even prior to full warm-up.

Any ideas as to what I should check? Would it be worth it to take to a shop with an analyzer?

Sorry for the upside down photos - can't figure out why they flip after upload....
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Mark
Las Cruces NM
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Current Project:
'67 Catalina Convertible
400 4-spd
 


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