Heads
Frank
Brodix advertises this head to only a 548 C.I. motor with that bore and a C/R of 13.0 to 15.0 They are a 26 degree head 365 CC with a 2.30 INT. and a 1.88 EXH. valve.
I understand the cross section and flow #s of heads. I guess if you had a 15.5 C/R 632 Why would you leave a 100 + HP on the table with a sub standard head for this application? For resale value most people would not even look at a 632 with this head on it.
I have a 540 with this head on it. I spent many hours porting them. Then they went to the engine builder. He spent another $600.00 of my money to finish them and CC them. He changed the chamber design, they now look like Darts chambers. On the dyno they did produce 830 HP with a 14.0 C/R This is a bracket car done by Gebhardts
Just finished a 665 C/I for my Tommy Muaney Chevelle 1294 HP and 1002 FT#s of torque PB 1801s done by Sonnys 15.3 C/R Yes, I left some on the table due to my cam choice. I wanted to stay below .900 lift. N/A with 2 1320 CFM Doms on a CFE sheet metal intake.
I don't dispute what your telling him! Becuase this is what you do for a living. Not knowing the rest of this combo? Intake, cam, carb, and chassis maybe this is a good starting point for him. Your right 950 HP can cause more than enough problems for most people!