Request help with M1 alky

I dont really know if the carb is alky specific. It is a holley 750 vac sec.. It is jetted for alchohol, and I suspect the needle and seat are sized correctly. The only corrosion damage I can find is in the interior of teh bowls. I puchased the car as is. It was a succesful bracket car that was run in the south. I ran it this past year here in the north and it is fast consistent, so I think the basic set up is correct.

Yes I suspect a head gasket issue. It seamed I was losing some water. After about 8 passes the water would be down a quart or more, but the system is so small I wasnt sure if it was steaming off, and there was always a 1/2 quart or so in the overflow bottle. I thought maybe the small loss was efecting the engine temp because there wasnt much coolant there to begin with.

Im not sure I am following you re the plugs? But I will do some research and see if I can figure it out. Are you saying I should see a mark on the ground strap of the plug? On the side that faces the plug or on the side that faces the cylinder?

Does an UGO sensor/meter set up make sense for alky?

Thanks for your help Bob