I had a 305 in a 1987 Formula FB with a 700R4, quadrajet carb and everything else stock. I installed a Comp 252HE cam - 206-206 dur. at .050, .430 lift, 110LSA and it was a really great cam. Lots of low and mid range power and still got decent gas mileage. Even with some 1.92-1.50 heads this cam would work well in your 327. Hot Rod did a cam test on a 9.7 c.r. 350 with AFR 190 heads and one of the cams was the 252 cam. The engine was a zz4, with edel. perf. intake, 750 holley, headers and it made 348 hp which is what the old L79 222-222- cam made on the same engine. They then used a Comp 268HE 218-218 cam and it made 380 HP. I would definately go with a 350 trans or better yet a 700R4 with its low first gear ratio. Good luck.