OK, I have a few miles on the new 306, so I took it to the dyno on Sat. I knew it was stronger than the 289 but how much I wasn't sure. So after some carb jetting and timing adjustments she put down 265 RWHP and 270 RWTQ. I was hoping for 300 RWHP, but behind the C-4 just a little too much drag, maybe behind a T-5 it could do it. Although 265 put's the HP at the crank around 370, so I can't complain. It will light up both back tires which is fun, although the wheel hop is not. It is definatly a screamer. I have it limited to 6K and it gets there fast with a very smooth TQ and HP curve. Having done most of this build up myself, I have fully realized just how expensive it is to build horesepower, but have enjoyed the experience. It has never been more fun owning this car than it is right now. It runs and drives incredibly.