Judging Standards

I would like to know what type of manifold heater for 1931 Model A ford pickup is accepted for national judging standards. There was a sheet metal type which was installed at Ford dealerships.

[Hal Davis (MODEL A HAL)]

I am no expert, but none of the experts have answered you. As far as I know, no manifold heater is acceptable in AACA judging because the car is to judged as the dealer received it, NOT as the dealer sold it.<P>MAFCA does allow the addition of some accessories, but the number is limited. Seems like it was four, but I don't remember for sure.