Save yourself a headache later and sleeve that block man. GE is the cheapest out there although I've heard a few complaints of their sleeve sinking. But who cares, their shit has a warranty and will re-sleeve for free if it ever sinks.
The thing is, you might say that you will only push 6-8 psi now, but trust me, that plan will not last long. A couple of months later you'll be fuckin' with that boost controller to give it another 2 psi. he he he he...
I've helped a few friends built their motors. I'm actually building my JDM ITR B18C right now for boost. This is the first time I'm building a motor for myself and not for ricer joe this time.
