lol.... idk. You'll have to click on the link and ask all that to the person selling. Your opening post said slant six 2bbl. I dont' know about the aussispeed and cfm's.
OK, let me further explain why I am choosing the Aussiespeed 2 barrel intake.
Since the Aussie intake has a Holley bolt pattern which would not require an adapter, because I hate adapters, I could currently remain within a budget which would allow further upgrades when I can tap into my 401K in four years.
Since the Aussie intake has a Holley bolt pattern, and injector bosses, I could convert the car to either a Holley Sniper 2 barrel, or install multi port fuel injection, at a later time. I would only have to remove the intake 4 years from now to get it machined for fuel injectors. Does this sound reasonable?