So I picked up my F100 a couple weeks ago and have been going over it and I have a couple questions. I have a stumble under load and she seems to start rough. Once warmed up it idles ok. I checked and re gaped the plugs. Pulled the distributor cap and everything looks good there. I was told plug wires are only a couple years old and they look it. Would it be worth it to upgrade my ignition with something like the Accel 2020 kit? Next question is does anyone know if you can adapt the 19 tooth speedo cable that used to go into the Ford 3 speed trans (stock) into a t98 trans? Thanks.