I am getting a ton of electrical noise when my car is running. I dont know if I'm missing a ground somewhere or what but it keeps causing my laptop to drop connection to my quarterhorse. And it occasionally causes the tach to twitch as well. What could be causing this and what is the best way to diagnose this problem? Thanks.
91 Ford Mustang
347 on e85, 76mm turbo, pmas hpx mass air meter in 3" tube w/maf extender, fox lake stage 3 ported trickflow heads, custom turbo cam by comp cams, trickflow box r intake, 75 mm tb, ID1000 cc injectors, triple walbro 255 external pumps, moates QH, GUFB, 15 psi, 200A alt, LC-1 wideband