I am considering swithching the cleveland in my 71 torino to a 351w. The engine parts are miss matched and it dosen't perform like I would like it to. The short block is a kragen rebuilt put in by the previous owner, which I think has low compression. I put in a lopy cam that isn't lopy, and it has 4bbl heads and port plates. The engine has a 600cfm holley and edelbrock intake and hooker comp headers. The engine is lacking something. It isn't very powerful and I think it's because the parts aren't working together. So I am thinking if I have to rebuild the cleveland why not go to a windsor. Parts are easier to find and cheaper and it should bolt to the tranny and motor mounts. My question is will my shaker hood still fit, and I would like about 400hp, whats a good combo to run? Thanks for your help.