I have a Crane Cams crank trigger, the pickup has red, black and white wires. I'm not having any luck finding a wiring diagram to hook up to a 7AL3 ignition box. Any help would be appreciated, thanks in advance.

Unless I'm mistaken, an MSD ignition won't work with those pickups. Those were a Hall effect sensor instead of a non magnetic pickup. You'll have to get an msd or moroso pickup for it to work

Thanks for the response Mark, this was on a running car. It was wired through an MSD 8982 timing controller and a 7AL2. I spoke to MSD tech, they said to try red 12v. Bl grand and hook up the white wire to the points terminal on the 7AL3. I tried Crane Cams, they advised me FAST bought their ign division in 2015. Tried FAST, no answer, left an email.