The 55' has a problem at higher RPMs under slightly heavier load. It backfires and pops through the exhaust similar to the sound of floating valves. I have disconnected the secondary to make sure it's not dumping too much fuel under heavy pedal pressure. In this video I set the throttle blades for the primaries and the secondaries, adjust the four corner idle mixture screws, set the base timing, and test drive the car to form a baseline to start from.
If anyone is interested in a how to of any of those steps, leave a comment down below.
#1955Chevy #55Chevy #Chevy #RichBackfire