Just fired up my new 350 for the first time, going to break it in fully w/ the stock non turbo head. I will be going turbo head here in a week or so. My question is how many shims to I put in? What plug is the best for economy/power? I have already read that the pipe of choice seems to be the re11? I'm looking for 10 min at the min. for mileage... If I can't hit that mark I might as well hang it up around my local tracks

Thanks guys!

BTW~ Before I even fired it I put new ceramics in it, as well as knife edged the rod @ work... Fired first try and perfect idle for the entire 1st tank, not even a hiccup!