Jake Ron was telling me that the motors will pick up HP on break in because they loosen up some what and spin a little more free. Numbers were at 5400 RPMs
532.9 HP
619.0 FT LBS torque
524.8HP
617.7 Torque Both had bad fuel regulators on the dyno fuel pressure shows29.2 on the 1st and 32.2 on the second.

Donzi as far as I know the runners were left stock. I know we didn't change injector sizes or anything like that.

Thank You Ran Dom. I was guessing about a 30" maybe your right. I hope your right!

Thank You Wildman. How does your boat run with those motors? Do you run around 90 with that set up? I hope 30s are right. Ron has a brand new set of Herring 4 blade 30s at his shop that I could get a decent deal on. I would love to be able to swing those. How ever I'm not spending that kind of money and having them bent on if you know what I mean. I have the same sheet you posted. My motors were dynode on that same dyno exactly. I was looking at your sheet and there is a couple things I didn't understand. The waterP column yours is 14. something and mine 57. and the other is 44. What is that column. Also my fuel pressure is a lot low than yours is. Ron said I had bad fuel regulators on both motors. To me that would so lower power all over this test. No? Let me know what you think please.

Well just to update the thread. I went over to Ron's around 4;30 today and his guys had one motor in my boat that the other was swinging on the hoist. I'm betting they finished the day with both motors setting in my boat. The new headers arrived today as well. We cut open the boxes while I was there and checked those out too. I'm going by the shop again tomorrow. Ill take my phone this time so I can take a picture or two for the thread. I forgot it today and left it on my desk. Stay tuned pictures tomorrow. Thank You to all of you for all the helpful info. I have never be threw anything like this before and I'm learning as I go so many thanks for the info both good and bad. Keep it coming.

Yea I knew yours would be ran at that shop, good guys there.

Lucky, I assume the water p is water pressure. Not sure if mine were even hooked up. Mine were ran with the stock CIM headers.

I would think the low fuel pressure needs to be fixed, seems to me that would effect tuneing. People that do this all the time may chime in.

My boat ran right at 82 any day any load, light load cool day 84 all speeds gps. Like I said before 28 hydro's

Really want to see those pictures of the bumber holders installed, I may do that if I ever get back to working on it.

Job is killing me.

Excellent.... 620ft/lbs of TQ in a reliable 540 combo sounds like a winner to me! Right on the edge of survivability with the B1 Drive so I would say you have just the perfect amount of power!!

600 hp on 42 lb injectors? They won't support that. Maybe 575 if you jack the fuel pressure to 70 lbs which is well over 100 percent duty cycle. You can do that....for a while. Ask around. Heck, they don't even use those in the 500efi.

What confuses me more is getting those runners to flow enough to make that power without cutting down the runners and removing a lot of material. That manifold was designed by Lingfelter to make torque not hp.

You might say I know something about making power using that setup with a 540 crank.

Thank You Wildman. I stopped by today just to see what was going on. My boat was just like I thought it would be. Both motors setting in it un plumbed. The kid that works there told me they were going to plumb them up on Monday. Ron was working on a particular Donzi that seems the live at his shop. This Donzi has been in and out of the shop at least 4 times that I count in my head since my deal started. I'm not sure if its owner is hard on things or it just has a lot of problems. Hopefully this isn't any indication of how mine will run. Anyhow. Your right about the fuel regulars. They will be replaced before the test run im told. I guess he felt like he had it tuned in enough with the bad ones and is replacing them before the first text. I took a few pictures for the thread while I was there. As far as the fender holder I will send you pictures of them in the boat as soon as I put them in. Im going to powder coat them blue Monday. The aluminum they are made of looks great but will need sanding before they will polish out to a shine. This is why I'm powder coating them blue.

Thank You for your input. This has been a very long road for us and I still have my fingers crossed that I made all the right decisions with all of this stuff. I guess time will tell shortly.