Ok-after dealing with constantly running rich and fouling plugs-i fixed the problem. Once that was done, i decided to do mods. every sensor in the car is new-except the cam sensor and the crank sensor. I put in a 180deg. thermostat, 10% blower pulley, cold air intake, midlength headers from scp, 76mm c&l maf, complete dual 2.5 exhaust with hpipe and dynomax super turbos, new 02's. when i tried to start the car it fired-and after a lot of cranking started-it wont idle until its warmed up, and it hesitates when you drive it. i took off the ic tubes and blower top when i did the headers, and it has new plugs gapped to .052 i think-they are the motocraft double platinums. i also change the sc seal. I was wondering if the sc tubes may not be sealed correctly, or if cleaning the front of the engine did something to the cam sensor-i was right by it-the plug wires are ne 8.5mm motocrafts too-the firing order is correct-i know for a fact-checked three times-my vac. at idle is really close to 20-and after it warms up it idles ok-but still hesitates. the plugs are burning whitish gray, for the most part, one is a little darker. the car has recent head work. i know its running on all cylinders-the engine skips when you disconnect any of the plug wires-any suggestions-please help!