327 sputtering under acceleration

Posted by fory On 2013/5/14 5:37:56

So I took my '53 Clipper out for a good long drive for the first time really since the motor was put in... It would cut out and surge under hard acceleration, especially is 3rd (direct, OD off) up around 50mph. I took it home and took the carb apart and found the little brass mesh filter was clogged, so I cleaned everything out really good and tried again. This time she runs perfectly smooth at speed (55mph+/-) but under hard acceleration it sputters a little and backfires once or twice. I then replaced the fuel filters and it got a little better. Now when I shift into third, around 40 mph, or even into 2nd at around 25 mph (I don't know what RPM, it sounds right though) and gun it, it will sputter and pop a little until it reaches a certain rpm and then even out and pull hard like it should.

What else should I check? Timing is set to 6 degrees, dwell is set to 30, new plugs (I'll check the number in the morning), NOS Sears solid copper plug wires.... It seems like its still not getting all the fuel it wants... The engine is from a '53 Cavaleir, maybe I should be running a 4bbl instead of my 928S?? Has anybody beefed up one of these WGDs?