Hey randomly today my car started running badly. Wouldn't idle runs rough. Upon my search I found fuel on the intake that appeared to be leaking from the input shaft at the bottom of the diaphragm for the secondaries. I also noticed that the fuel is constantly dumping into the secondary bowls hence the flooding and rich conditions. I don't know a lot about carbs. My carb is a 670 holley vs only has about 2000 miles on carb.one of you carb masters please help thank you.

 

Check your float level. If gas is constantly running into the secondaries, your gas level in the bowl is too high. Could be a bad needle and seat not sealing, float sinking not raising the needle to seal off gas or simple float adjustment. That's where I would start.
GL and let us know.

 

Definitely going to replace seat and needle. Adjustment to float level made no difference so I would assume seat and needle would be the proper fix thank you for your feedback and happy motoring.