If you go ahead, think though the possible results carefully. Contacting a parent goes so deep and it's not often that it's an easy thing. If it goes wrong, it can cut very deep.
A lot of it will come down to what are you expecting from contact?
A joyous reunion?
Mild curiosity?
A sense of belonging and being wanted?
Hoping for something from it? (no judgement here).
Things to think about - what will you do if he
Rejects you?
Wants a lot of contact? (it's not always as easy as you might think, if you're very different people)
Doesn't act like a father, more like an acquaintance?
Turns out to be someone you don't really like?
Turns out to be someone you do really like? (that one's easier :) )
Rejection by a long lost father can hurt a lot, even when you don't think you expect much from him. It can stay. Other people can brush it off, so again, think about what you want from this.
Sometimes people meet their parent once, and that's all they need.
Cautiously, I'd say go for it but be aware of yourself, and that things can go well but can go wrong.
My bio. father has rejected me four times now. It does hurt, I won't hide it. I would have liked a distant but friendly relationship like I have with my half-sisters from bio. mother's side, but it won't happen. His wishes are very clear, but on my side now the door is closed as well. No point putting your heart into a meat grinder.
I hope it works out well for you. Sometimes it does.