Im with baby j on this one, build what you want, if it doesnt turn out the way you wanted it to or you dont get the gains you were going for, then try again. Atleast you can say that you built it exactly the way you wanted it. Also, have an idea of what your going for ( hp, tq, top speed, 1/4 mile) and do the research so that you wont sink a ton of $$ into something you thought would be fast but turned out not to be ( like I did). I used to build 5.0 race engines for mustangs and was pretty good at them. I got bored and in 2000, starting trying to build a JDM B16A using the knowledge that I had from building v8's. I quickly learned that 1, you cant think like your building a v8 on a 4cy. engine(bigger is not always better) and 2, it costs three times as much, back in 2000. I never finished the engine but thats another story in itself. My point is, I built what I thought would be fast and went off what information was out there about building a high performance honda motor and it was exactly what I wanted even though its not fast or would have made hp at all. Import performance parts have come a long way the past 10 years!