Every Ford truck with a 351M/400 that I've ever come across in the JY with the 2150 in it has the Hot-air choke with electric assist in it. Not sure how much the hot-air contributed to the choke as most of time the hot air tubes are clogged with carbon, voltage for the electric choke is only 7 VDC and it doesn't take much to heat the choke spring up.
3G Alt. Upgrade, Duel Batteries, 351M bored .030 over with Edlebrock cam and intake, C-6 w/AO4D internals, 3" lift w/RS 9000, 33x12.50 MTR's, Saginaw PS Pump Conversion, On Board Air, Detroit Locker, Hydro Boost Brake System, Altimeter from a CH-46D, Map Light from a MH-53E.
U. S. Government - Wasting paper and keeping Lumber Jacks gainfully employed since 1776.