the JMM EB is running 12.04 running 100 or 150bhp shot.
If your going 110% drag engine, I would look at getting very serious with manafolds, induction and head work.
I'd start with a 94DA head, get big valves installed and ported. For an out and out motor you can go to the extent of raising the port floor and
porting out the roof etc etc.
As for intake are you limited to carb, or can you use injection. For an out and out race motor Hilborn style injection, using 6TB is one avenue.