Reminds me of nextdoor neighbor. Reinstalled engine(VW air cooled) in his Bradley after it had set for around four years, locked up due to rust in cylinder. Ummm water got in it somehow. Ford recommends .030 as max overbore, though .040 is common. Going to .060 may get you into trouble. Block must be magnafluxed befor any work is started. I'm not all that familiar with the ¾ engines, but I know with small Ford 6 cyl, intake manifold is part of head casting. Machining can be performed to install additional carbs but as for a brand name, I've never seen one. There are aftermarket intakes for the large 240/300 engines. If you want responsive, off idle performance, multiple carbs are generally not your friend. Engine such as you described don't come alive to around 3000 RPMs.
Well the water comment wasnt really helpful but thanks for the rest of the response. At the end of the day its where im at and dealing with it. I was thinking of staying with the 200 anyways. I was planning on getting everything checked out, but I dont want thin the cylinder walls too much. Its just going to be a cruising car around town. The engine im looking at has 3 autolite 1100 carbs on an offenhauser intake
If the car started as a 200 then the simplest thing is to stick with it as a conversion to something else could cause further delay and headaches. Is the engine you are looking at in a running vehicle so you can hear it run, or better yet drive it? If not you may be setting yourself up for a repeat performance.
Yeah I don't want to chance down conversion parts. It was pulled recently due to a 302 swap. Ill see if they can start it. I know it turns over freely.