Welcome.
As far as engine upgrades, first, I would start out by figuring out what you already have; block / head casting numbers and compression ratio. From there, you can develop a plan as to what parts will make a difference.
Compression ratio is usually the limiting factor. Most engines are in the 8.X:1 static compression ratio range. This low of a compression ratio does not lend itself "bolt-on" performance parts, i.e. bigger cam, heads, etc.
My school of thought is, decide what your realistic performance goals are and develop a plan. In most cases, I feel it is better start fresh and not tear down your current combination. That way, you can still enjoy what you have while you build.
Post up your results and don't hesitate to ask any questions.
Cheers,
Joe
