Markhat, to get more top run either a 2057 or 2013pipe. The 053 actually on these engines brings more on the bottom and falls of on the top. If you cant get a 2057 or 2013 then even a 086 pipe will be way better than the 053. I also have a B7 and it does have more top but it also has a lot less bottom. If you dont need a lot of bottom then the B7 will be great for long tracks. If your track is that open you can also go up on the clutch bell 1 tooth or even 2.