I have a 66 Chevy C10 with a 250 in line 6 engine with a 1 barrel rochchester carb. Recently it has started dying when approaching a red light or stop sign. She cranks easy, runs fine, accelerates fine, and will idle all day if you are not decelerating. It’s a 3speed manual transmission and pumping the gas to keep it running while stoping is not fun. When this started I noticed a small drip of fuel coming from the mechanical fuel pump, (it’s an airtex fuel pump). I tightened all the screws holding the thing together, stopped the little infrequent drip of fuel....still had the problem. So I replaced the fuel pump anyway.....still have the problem. I have set and rest the ignition timing, it was never off, 4 degrees before TDC. I have adjusted the mixture screw on the rochchester by small increments to no avail, it still dies when decelerating. So, I need some advice here....there must be something I am missing....I’ve owned the truck for 17 years and never had this problem before. Any help would be appreciated.
