Are you smoking crack Barry? There is NOTHING better than alky for roots blown, except roots blown alky w/nitro!!!
Gas and roots /facepalm
I had a set of GM 990 heads that flowed the same as your Brodix 2+ (350/230 @ .700) on my 505.
It was an 11.5:1 static motor, similar cam (Ultradyne .723/.725).
With 18 PSI (about 22% OD on an 8-71) with just hat nozzles, the motor made 1200 HP on the dyno.
Here's the dyno sheet.
http://www.onebadgmc.com/gallery/dis...113&fullsize=1
The small blower held that motor back. You should be able to make some good power with it. Even better if you step up on cam and port flow.