I'm all for guys making more power and going faster, I'm guilty myself, but it's just not smart money to chase 600 hp and up type power while still utilizing a stock block platform. Yeah there are a few guys that use them and run fast, like John, BUT his cars are very very light compared to most others on here so just how much power is he making? If I recall correctly I don't believe he dyno's any of his stuff as he is looking for track results but the point is still the same you have to have a foundation that will give you peace of mind and that you can actually grow into over time too if a person wishes.