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LS1Yukon---nice truck man! Sucks to hear about your bearing mishap. Dude, if you would have asked first...Pinning the crank pulley is the number one thing to do when you have a Radix with anything under a stock 3.4 pulley. What kind of boost with the 2.85---12-12.5 psi? Congrats for hitting the 12 sec. mark! Clean up that motor and get it back in there you so can have a few more 12 sec. passes!
Good runs! If it is that hot where you run, try a little meth injection. It will run cleaner and cooler. It is always good to see a heavy ass 4 door SUV spank some ricers....
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You're absolutely right...when I had the engine built, the builder asked me if I wanted the crank aned pulley keyed, and I ignorantly said "Nah!" Would've only cost me $175 to have avoided this entire mess!!! Like I said, lesson learned. I'm seeing just at 11 lbs max boost at around 3800 rpm, then it slowly drops down to 8.5 lbs at redline. Not sure of the cause but I have since bought a 90mm j-tube/NW throttle body and 60 lb Mototrons, so I'm confident that fuel/air won't be the issue next time out.