We had a great day on the dyno today. The motor fired right up and made 564 hp on the first full pull. Best numbers of the day were 579 hp @ 7,000 rpm and 491 lb/ft @ 5,300 rpm. The best torque number was 497.5 lb/ft @ 5,300 rpm and 574 hp @ 6,800 rpm with slightly less timing. The motor made 390 lb/ft all the way down at 3,000 rpm so I was pretty happy with that. It didn't leak a drop of oil either. We probably could have hit 600hp with a carb spacer and some dyno only timing/jetting, but I didn't see the point.
If you guys have never been to an engine dyno, I highly recommend it!
I decided to run a McCleod RST twin disc clutch with a McCleod steel billet flywheel and a Silver Sport 621 bellhousing. The bellhousing indexed nicely with .005" total runout. I could not get the transmission mated up using the plastic alignment tool provided with the clutch. I ended up getting the Ram clutch alignment tool yesterday and it worked great. The pilot bearing nose on the tool was initially about .002 oversize and would not slide into the pilot bushing. About 30 seconds with some 400 grit sandpaper brought the tool down to size. I was able to install the floater, top disc, and pressure plate with the tool in place. With the Ram clutch tool, the transmission seated perfectly the first time.