davidg8991
Well Known Member
I am the new owner of a 1960 Chevrolet Impala. It has a 348 with Tri-Power. I'm asking for your help today because the engine seems to be drowning in gas at idle and low speeds. This situation gets worse as the engine reaches running temperature. I don't know the history of the car, sorry. Adjusting the timing as no effect on the problem. I have done the following. Installed a new electronic distributor, coil and wiring. New "standard pressure" fuel pump. I rebuilt the center carburetor, adjusting the float level and drop to the correct specifications, and a new needle seat. I might add that the center carb is the only one with the idle/air adjustment screws. Installed new spark plugs that are now black. I have adjusted the carburetor linkage so that the front and rear carbs do not begin to open before 50 to 60%. The number 1 and 2 spark plugs seem to be cleaner than the rest which makes me think that raw gas is running down the front inside the engine.
I saw in past history, 2006, that someone else had a similar problem, and he decided to just give up and put a 4-barrel carb on instead. I would like to solve the problem and keep it stock! Thank you for your help.
I saw in past history, 2006, that someone else had a similar problem, and he decided to just give up and put a 4-barrel carb on instead. I would like to solve the problem and keep it stock! Thank you for your help.