Re: oil pan clearance issue
The Mustang II used a special pan for the 302. The back of the pan was smaller and rounded. They were on Mustang II's only. You can try finding one on eBay, or there are a couple of Mustang II oriented website/forums that you could try as well.
351W, Ported D0OE heads,69 Shelby alum. intake, Motorsport M6250A332 cam, AOD w/wide ratio gear set, TCI Street Fighter conv., 9\" 3.25 t/l. http://cobraii351.us