it seems that everyone in here is talking about the newer preludes. what about the earlier model preludes? like the 85 prelude 1.8 dual carb sidedraft that i have (no, i am not really proud of it, but i got a great deal on it), or the 88-91 preludes, like my friend has, and i have an engine from. doesn't anyone fix up those and do anything to those? is there something wrong with the earlier models that we just don't know about?