Thanks to the awesome efforts of Mike Phillips and David Wink at Automotive Machine and Performance we got my Nailhead tested! First, I got kind of jealous of Wild Bill since he got his 455 dyno'd, so I asked Mike about testing and he had an opening last Friday 4/18. We got the thing set up by late Friday and broke the cam in...I was nervous as heck about the cam and rockers, but the Telesco's performed perfect and the valvetrain was fine, no serious leaks either :TU: This is a MR code 401- Stock pistons, 0.030 over stock rods, crank W-30-10 cam- installed 4* advanced intake and heads were extrude honed. Heads were prepped by Carmen with the 1.94" intake valve, distributor, flywheel, oil pump, oil pan and pickup all from Carmen. I had a set of GS Club headers with 2.5" collectors bolted on for the test. I left them there @ AMP so Mike is set for future Nailheads. Carb is an Edelbrock 750. had to do lots of carb tuning. best pull went torque 459 @ 3700, HP 373 @ 4700. Then we stuck the Buick X-code aluminum dual quad manifold on there with 2 4bbl Carters- stock dual quads rebuilt by Carmen... best pull went torque 446 @ 3800, HP 377 @ 4700 where it ended, it was leveling off there- stayed at 376.8 @ 5000 rpm. I can't wait to get this into the 65 GS. :laugh: Again, thanks Mike!