I have a '58 Apache stepside 235 which has been fitted with an Offenhauser manifold and twin Rochesters. This has led to two problems. The first is that the linkage doesn't return properly when idling so it runs too fast but if a stronger accelerator spring is fitted the pedal won't go down. The second is that it runs too rich and the plugs are always black. I've tried carb kits, smaller jets (48s) and now new carbs but nothing seems to work. I've read many times that it should only have one carb and two never run properly. Would it be possible to blank off one carb or is there a way to fix both these problems, short of converting it back to one Rochester?
