I am another new guy here, I just got a 57 14 19 2, n3650b, and it has a firewall mounted filter. it didnt have an stc, of course, so we had to get a field approval before i could ferry it home. it also has a modern adair fuel tank selector, which we also had to get a field approval, and a modern brackett air filter, which also required faa approval. if anybody wants one of these things for yours, i can put you in touch with the guy who can make it happen for you.
glad to be here, i have some other issues i will be posting about after i search the forum to avoid repetitive questions. i know you guys will know the answers to all my problems.
great airplane, flew it from seattle to alabama without any serioous issues. the plane had been sitting for nearly 40 years but the motor was pickled and seems to be fine. love the way it flies, and is one of the easiest taildraggers to land and i have flown a lot of taildraggers. amazing airplane for its vintage.