It's been 4 or 5 years since that coil went....I recall it idled ok but couldn't be revd up normal. Another tractor I have had problems mowing. It would bog down and slowly recover. I ended up moving the governer spring to another hole (if you have several) So that the spring tension was increased. That solved it, but Im not sure if that's your problem, especially if your governer worked before the carb rebuild.