I have a 1970 FJ40 with an 86 350 chevy. For some reason it keeps "jumping" or loosing time. It has an MSD Billet dizzy. I have replaced every part in/on the dizzy twice. I have also tried 3 different carbs (holley, edelbrock, rochester). I have replaced the timing chain twice and also tried a gear drive. I am all out of ideas I have no clue as to what it could still be. It will run perfect for a week or two sometimes only for a few minutes then it runs like crap. Either backfiring through the carb or the tailpipe. I get out adjust the dizzy either retard of advance so that it will run good again only for it to do it all over again at some point. At this point I'm about 99% positive that it is not mechanical.
I know what everything is on the cruiser except for two parts they are on this page here (Specter Off-Road-Land Cruiser Parts - Page 182-Switches, Relays & Flashers). One is called the "Inspection Plug" S.O.R. part #182-17A, the other is called the "U Computer EMS" S.O.R. part number 182-64A. Can someone tell me what these parts are? And whether they can have an effect on my timing issues.
Thank you to anyone with any information.
I know what everything is on the cruiser except for two parts they are on this page here (Specter Off-Road-Land Cruiser Parts - Page 182-Switches, Relays & Flashers). One is called the "Inspection Plug" S.O.R. part #182-17A, the other is called the "U Computer EMS" S.O.R. part number 182-64A. Can someone tell me what these parts are? And whether they can have an effect on my timing issues.
Thank you to anyone with any information.