Is there anyone in your area who is familiar with gassers?  Find as many nearby clubs as possible and stop by with your setup. It's very hard doing it long-distance.</p>

I agree that it sounds like ignition interference. Search the forums for correct installation technique. It ain't rocket science, but you need to understand the basics of routing wires and keeping components separate. I always put a shielded cap on gasser plugs, gets rid of the worst interference.</p>

" Metal to metal, while not a great idea, creates interference well below the frequencies 2.4 operates at."</p>

I have to disagree. 2.4 can be swamped, like any other frequency. Just not as easily as 72 Mhz  or others. Remember when PCM was going to cure all?</p>