I have a 79 f250 with a 300 6 an a 4 speed, I got this truck a while ago and it sat for 6-8 months before i put it on the road last month. It ran great when i got it, but now it will not run for ****, especialy on damp days. What it does is this, It will run fine, then stumble and buck like there is water in the gas, then it will pick up and fire and blows the muffler apartI have rebiult the carb and flushed the fuel system so i know there is not water in the gas. When it runs it will run well, then it does this. I have replaced the Coil, The inductive pickup, the Dura-crap box on the fender, cap upper and lower rotor and wires/plugs. It still will not run well, the only two things i have not replaced the six eared trigger for the sensor and checked the leads comeing from the ignition switch. I have even gone over the engine harness with an Ohm meter and checked for hard spots in the wire, everything looks good. This thing is realy getting ther best of me. any help would be appreciated. Convince me i like this system before i rip it out and go back to points.