Gas Odor

impala
gasoline
exhaustsystems
leaks

#1

I have a 61 Chevy Impala with a small block 307, 4 barrel, dual exhaust. My problem is in a fuel odor primarily on deceleration. I’ve replaced the carb, fuel pump, fuel lines, and removed and checked the tank and filler line. No leaks in the fuel system. I’m at a loss for what’s next. Anyone ever have a similar problem?


#2

If there’s no leaks in any section of the fuel system (lines, filter and filter housing, etc.) and this is only a WAG, is there may be a float level problem but that’s only if you find the carb is flooding at times. Does it?

Nice wheels btw.


#3

Thanks for the idea. I’ve replaced the carb 3x. due to flooding. One of the carbs had a bit of a dead spot at around 35 MPH.