carb help

[70stroker]

Alright guys some of you know i have been in the process of buiding a blown 460 for my truck. I am in need of some help now.

First off few years ago i got a awesome deal on a bbc stock bore, ran good, so i just pull the small block and slapped a cam in the bbc and ran it for about a year. Then i found out i was being paid wrong for a year or so and got a good chunk of money, so i decided to slap a 177 weiand supercharger on it. At that time i just ordered a 750 edelbrock. It ran pretty good. Then i dropped a valve and screwed the motor up. Took it to the machine shop bored it and put a full scat forged rotating assembly, a actual blower cam, and some ported polished 781s.

Well some point of building the motor and letting the carb sit around (it was drained and covered) the carb got something in it and when i went to start the motor it was flood horribly, I think i had soemthing in the needle and seat. Well the last few days i have been thinking, why should i take this carb apart and rebuild it when i already have alot of money in this motor, why not just buy a carb thats meant to run with a blower.

Anyway i slapped a 600 edelbrock on it to break in the cam and it runs alot better then my 750 thats currently crapped out. But i know 600 is not enough for the motor.

So the question on the table is ever cfm calculator i find asks for cid of engine, safe rpm, and Volumetric Efficiency.
on cid do i put 460 or 460 plus the 177 cid blower?
safe rpm is 5500 to 6000
how do i know volumetric effciency?

I really want to get this thing on the road and test drive it, but want to make sure i have enough carb and its running correctly also.

Any and all help is appreciated. any more info needed i can also supply that.

by the way it has a 3200-3400 stall, and a 4.10 posi unit.