67 Mustang w/390 Some old lady is selling one unlisted for $4000. Husband passed away. Supposedly the body and interior is in great shape. Was pondering the idea of dropping in my 430hp 390 into it. Since they did come with 428's, I wouldn't think it would be to difficult. Anybody have any info on this? Think they came with 351W, 390, 428, and maybe 302's? That'd be crazy if it was a 428.