The flathead in the 37 coupe started cutting out during acceleration. Spent a day going through the easy stuff. Total ignition tune up. Checked advance and timing. No change afterward. Ordered two power valves and throttle cups from Dickster and tore both carbs apart cleaning them. Worked great. I imagine I blew one of the power valves. Ran great. Took it for a 60 mile drive and returned home to find the front carb leaking at the throttle shaft. Tore the cover off the front carb. Readjusted the float. Reassembled and decided to test it. The car started up, ran for three seconds and shut down. Tried again fired but no start. Tried again. Started, ran for three seconds and shut down. After that there was no fire. After a day of frustration I dove into the problem. No spark from the plugs. The coil had no voltage at the + terminal. Ran a jumper from the battery to the coil, started up. Had to be either the wiring or fuse, I thought. Checked the fuse. All good. Began tearing apart my wiring harness to trace a bad coil wire. Crawled under the dash tearing apart my harness to get to that damn thing. Ignition switch wiring, good. Wiring to the coil. good. Wiring to the fuse box ??? Wanted to make sure I had the correct wire number so I pulled the old directions for this Kwik wire assy. About ready to give up for a couple days while looking at the layout. I came across a paragraph about the security coil shutoff switch attached to fuse panel. . Here some how the plastic switch was found laying on the floor mat broken from the fuse box from some kind of hit. Hell I have no idea how I could have kicked the fuse panel breaking the switch off being so high into the dash. Every day is a challenge. All this in one week.