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Originally Posted by rage'nrat638
350 with 600 holley.......
not much to adjust......
any thoughts......thanks mark ......running rich....
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What are the readings? Look at them and see where you failed. It could be a carburator adjustment. Lean is good.
-Change the oil and filter (get that old polluted oil out of your engine.
-New air cleaner
-New fuel filter
-Run a can of Pass Smog by CRC found in most parts stores, Walmart, etc. (this stuff works) I learned this from a technician that repairs vehicles that have failed emissions testing
-Check for and repair any vacuum leaks
-Check the timing with and without vacuum advance (less is good)
-New spark plugs, wires, cap, rotor. Check your old spark plugs for color. They should be a light choclate color
-Make sure the engine is thoroughly warmed up.
-Make sure the technician does not raise and lower the RPM's quickly. This dumps excessive fuel into the system
-And anything else the other members suggested