Well, the job is complete, at least enough for me.The 572 made good power but isn't tuned for max effort.I learned that the carbs were not the best for the application. They ended up with 140 primary and 153 secondary jets.I don't have the dyno sheets yet and I did manage to get some photos but The camera won't record sound.No big deal, i will have sprint man or someone else post them for me.I wound up with 1117 hp @ 6500rpm on pump gas at 29deg total timing.Full advance was in at 2300rpm.18 pulls were made.The pump gas reading was with 11.8 lbs of boost.On race fuel, the engine made 1166 hp with 13.6 lbs of boost.Timing was at 30 deg,tried 35 but it did not respond.Larger jets have been ordered and their absence limited the boost we could run.I really don't need another 50 hp so I think we can wait for a couple years and then make some upgrades.The engine would Idle at 850 rpm on race fuel and a little higher on the pump gas.I don't have the sheets in front of me but the torque and hp band is very broad.I was unable to use the same exhaust header as in the boat, but pretty close,2.5 primary and 4 inch collector.The collector on the boat headers have 4.5 inches.I tried it with the air cleaner and it caused it to richen up a little,which is good, and dropped the horsepower by 27 on the top end.The intermediate circuit was very fat and we changed the bleeds and even tried it with them out.I learned a bit more about dyno tuning and alot more about the carbs.The cam peaks around 62-6500 and the power difference is minimal between the three.It made 1000 horse starting aroung 5600rpm.I will see if I can get the pictures and sheet posted soon.The air fuel ratio was around 12.5 but my egt's are running on the high side.about 1430- 1470 at wot.I was told this could be the result of not enough coolant flow through the engine(iron heads).I was using a csi electric pump, I did not have my water cross flow tube for the inlet. water temp was around 160 and oil temp was at 205.Carbs made for the application would have netted the 1200 hp level.The vacuum pump worked well but I have to get an air bleed valve to regulate it.It registered 14 inches at full power and the man said he wants 10. The right side valve cover was tapped in the rear for this measurement.The air intake charge temp was between 145 and 160 deg,the intake manifold has holes in each runner for mech fuel injection,this is where we probed it. A single inlet on each end was used to feed and exit the cooling water through the superchiller. I was told to try and inprove on this to drop the intake charge temp,any suggestions welcome.water pressure was around 15-20 psi.I could feel the discharge water temp climb as engine load increased.Plugs were ngk 8's gapped at .042 and a crane box with msd coil,wires and distributor.I will continue when the dyno sheets and pic's are posted.