Hi Drew, I appreciate your honest feedback. I take it as an FE enthusiest wanting to understand the results and interested in helping me to get the most out of my setup. With that said I do have a some thoughts. I just added the actual dyno data to my first post. I believe I captured the relevant data but I have the RAW spreadsheet I can upload if anyone cares. I also think the average #'s are important.
Average HP 482.8
Average Torque 547.9
I definitley know about BP's other builds but I have a several things going against me.
1) Most BP engines I have seen make big power, 666hp with one that had a Tunnel Wedge. I have a dual plane 2x4. Probably losing some top end there. The BP 445ci has almost the same curve as my engine with 40 less cubes which is interesting.
2) My Precision Oil Pumps Melling HV has too much pressure. The posted dyno chart was with 5w20 and I'm still well over 90psi at temp. This is robbing power for sure. I'll be changing the pump out before it goes in the car. I also will be running 10w30.
3) My mechanical water pump and fuel pump. I wanted the reliability of a mechanical water pump and the simplicity of a mechanical fuel pump. I am sure this is costing me HP.
4) My header collector necks down from 3.5" to 3" for my exhaust system. On my merge collectors this is a penalty
5) Camshaft, I wanted a hydraulic roller cam that netted best possible power on pump gas. I didn't even care about vacuum but I ended up with 10inHG so win/win
6) Dyno differences. The Superflow 902 dyno may be different from the Stuska BP uses. I'm not sure if that means a 1% difference or 5% or more but it may be factor.
7) BP didn't build my engine. I think my setup is done well but it doesn't have the BP special sauce. I was warned fairly.
8 ) The stock block was a result of the project changing directions. At one point I was planning on a Shelby aluminum block. I changed directions probably three or four times. If I had to start over I would probably go with a aftermark cast block which would probably get me me a few more ponies. In the end, I went forward with the stock block.
9) For the carbs I had a set of OEM BC/BD 715cfm Holley's that might have been rebuildable but I sold them for more money then the QF cards. I also asked Blair for carbs dialed in to my application. As far as I'm concerned they were spot on correct. I didn't even have to mess with idle mixture.
10) My rotating assy is over kill but is was free and gives me confidence. That was good enough for me.
I hope that answers your questions. I sure would have liked over 600hp but it didn't end up that way for various reason that I understand. I'm not sure what I would do anything different given the requirements I asked for. I am open to ideas/changes but no matter what I'm going to flog this engine for a while. I am very happy with my first FE.
The quarter mile will be the best dyno in my opinion.