If it smells rich all the time, it could be rich. What do the plugs look like? As for a coil, i stay far away from Accel, I do use a lot of MSD Blasters with good results. In most cases, Edelbrocks come lean. But with a stock 318, it can run rich. You need the strip kit for it and a vacuum gage to properly tune the carb. I'd bet it needs a different set of step up springs and probably a smaller jet and rod combination to be perfect.