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DD2000 doesn't use flow for the intakes. I do have a Zip file on lots of popular heads that I could send you though.
I've just started playing with dd2k and thought that I could input custom numbers in the "Airflow Math Calculator" for intakes but I see that you can't. :o
I'll take you up on the offer for the head flow files!
From: Fairview Heights Illinois, near Saint Louis MO, STL C3 Shark
I've even called and asked Edelbrock about it, THEY don't even have flow numbers for the Edelbrock Performer, but DO for the RPM. I figure the Edelbrock Performer is just a stocker but made of aluminum and has "Edelbrock" on it:
that kinda suck's , there is some flow differences between the different intakes
Yeah, no doubt. But........if you really think about it, it doesn't matter what the intake flows if your heads choke it down. The only air going in has to go thru the intake port.