Hi there, Alan is my name and I drive a RB30 "powered" GQ Patrol, circa 1992. In thread #6621 I think it was, the author stated that these engines were "quite old" and finished production in the 80's. Mine is a '92 and I think Nissan carried the RB30'S thru to at least '95. Were the engines in storage for 8-10 years? I, like most of you guys, am looking for more power from my RB30 and so far I am looking at doing a NA version of the twin cam idea. As the vehicle is currently carburetted, I know that I have quite a large project on my hands and an even steeper learning curve. I am enjoying this forum and in time, will more than likely be needing loads of advice. I thank you all in advance, Alan."Old" RB30's