first i want to say very nice build! and secondly i am wondering what you are doing to ensure proper oiling and pressure? I am currently building my CA and its in the machine shop right now getting stuff done pretty much along the lines that yours is. but i am also looking at some minor details that will keep my motor alive. I am not saying yours won't but you may want to look at these items before your $$ goes threw the side of the block.
Items to consider for oil issues
tap and thread crankshaft instead of having a welsh fitting(known to come out and loose oil pressure in crank)
oil restrictor to head(known "flooding of head" under high rpm runs with oil leaving the bottom end without oil)
expanding oil return to sump galleys(aiding in returning the oil to the sump)
Placing an external fitting on the back of the head that will help drain oil back to the oil pan(also aiding in returning the oil in the head to the sump)
CA engines are alot like the RB motors as you know, they have alot of the same strengths but also the same weaknesses. I am making sure that my build is the only one i have to do. i highly recommend (if you haven't already) research the RB's faults and improve on them as i am. if you know this already then GREAT!! you are ahead of the game i am just trying to help you so all that $$$ does not end up on the shelf of broken parts dedicated to the god of speed.
good luck and great job so far. 750hp is a hell of a feat, good luck.
http://ozdat.com/forum/viewtop...ation^^Lots of good info in there if you have not already been there, sorry if i am telling you stuff you already know, but if you are going for that big power you are going to need all the help you can get.