I've got an S&S Super E carburetor on my '83 slightly modified shovelhead. I just purchased a 1995 CV 40 mm carb. Is there anything that can be done to the CV carb to have it perform better than my S&S? Or would I be wasting my time? Also, would the Thunder Jet on the S&S help that much if I added a small amount of nitrous, without adding any other fuel? If so, what's the max amount of nitrous with cast pistons I could add and still have it stay together without blowing up, if used it only on occasion? And what jets or what kit would I need for the CV? I've been told that the CV is a lot better carb jetted right. Is this true? And another thing.. I've got solid lifters with Andrew's AB cam, the noise is driving me crazy. I've thought about putting hydraulic Velva touch lifters in it. Would I lose much performance, and is there any other lifters I should try since they're so expensive?