[BMSJaX]

Alright I have a 350 casting 3970010 71-77 made in '74(ran the numbers) and I noticed something odd with the filter mount. 71+ blocks were all spin-on filters right? So they should have a mount that looks like pic one right? Even my '69 307 uses this. But mine has pic two which is a adapter for canister to spin-on? It started leaking around the top so I was just gonna replace it, not knowing its condition, but now I do not know which to get... any ideas? If it doesnt need the adapter I dont want to just replace it with a possible incorrectly used part.