Look at my Avater..... That was a FULLY built d-series!! And I made 300whp and 238wtq at 15psi, but spent A HELL OF A LOT more than $600. You get what you pay for!!!! My setup was in the $5k-8k range. just for the motor build!

Oh if you plan on spending serious money make sure you get it sleeved!! 2 pics to show you how it looked in my EG: