So I have a 302 block and crank that came out of a 1971 Mercury Comet. Is that a Good block? I also have a set of 351 cleveland 2V heads off of a 400M out of a 1976 LTD. I was told the 2V cleveland heads are best for street use is this right? Also will the stock 302 rods work or do i need the 289 rods? any more info would be great. Thanks