I think you'd need a better crank. I've done some researching on what I want to do to obtain about the same horsepower you're looking for. Some of the options I've looked into is VT Engine's GT Pro block with the ported heads and cams or Foxlake's shortblock with the p&p heads and putting a KB 2.2 on it.
Lower end is my next step as well. From all the research I have done so far, VT and MPH owners seem to be the happiest. Don't think I have heard anyone who has either have any problems. After that, DSS seems to be pretty close, but I have heard almost nothing good so far about SHM.
I know to take everything you read with a grain of salt (especially on the net), but when you hear things repeated by quite a few different people, on different sites, you can start to form pretty good opinions.
I know to take everything you read with a grain of salt (especially on the net), but when you hear things repeated by quite a few different people, on different sites, you can start to form pretty good opinions.