I'm working on a 1948 3600, 216 with a tall AC canister oil filter.
The fitting on the block is a brass "T" where the male threads go into the block and there are two female threads for output.
My question. On the output side, the treads are the same size, but one has a much smaller passage or "hole" than the other. Does the output with the small hole go to the filter or the gauge?
Thanks
