I'm building a .030 over 400sb (509 casting. I was wondering if some of the well-versed experience might give their opinion on the combo I have selected. The block is at the shop and is due out this week. I have already purchased the rotating assy but I am waiting for some advise before I buy the heads and cam. Here it is:

Street/ Strip 1966 el camino( restored)

Rear- 8.2/ 10 bolt/ auburn posi/ 3:55...I know, this rear sucks!!!
trans- race prepped 350/ 2500 converter

Engine- 400- .030/ skim decked 2 bolt main
milodon main cap bolts
scat 9000 crank
scat 6 inch i beam 4340
JE forged piston dish

The camshaft i have chosen is a comp hyd roller pn-12-433-8/ 288XR
288/294 236/242 .520/.540 lsa 110

The heads I have chosen are Brodix IK 200/ 200cc 2.02/1.60 70cc chamber
Aluminum

weiand stealth intake

holley avenger 770 carb

the compression should be about 10.7 to 1 with a fel pro .041 gasket

My concerns are: is 200cc too large for this eng?
is the compression streetable?
I have desktop dyno but don't know how to determine the head flow on it.


I was going to buy the AFR 195 heads but the mom and pop speed shop here does not sell AFR...I try to give them as much business as I can.
They advised that they also sell patriot heads
Thanks for any help or opinions.