Were not tryingto be rude, it's just we can't really tell you what you need to do if you know not what you speak of. If someone says go with 6061 3.8" rods, are you going to know what that is? And are you going to know why? It's fine and dandy if you don't know what the **** it means, but I just don't think it's the smartest thing to do [dive into a forced induction modification] if you don't know what's going on. If you do, then I'm sorry, you just did not seem to.
If you want just a small gain, try a I/H/E job and see how you like that. If that aint cool, then maybe read up a lil bit, make friends witha machine shop, and then up the CR a little bit. For 30HP, a number of things can be done.