They only came with 240's and solid lifter 170's in 65. By the sound of that engine it may have been swapped to a 200 at some point b/c I can't really hear that classic sewing machine solid lifter tapping noise. But they didn't really show it running with the "hood" up. I think these 1100's are a great option for 144's, 170's and bone stock 200's. I don't think they can provide enough air or fuel for a hopped up 200 or 250.
Yeah, that's a rare van. They're referred to as "no-door"s. They should have run a wire off the "run on the ignition switch to a relay that throws power directly from the battery under the seat imo. They may have still been at the 12v before that junction, I don't know. It worked.