[truckboy61]

Carb - Holley #9188 cfm 780 type (4150) , 454 BBC , closed chamber 206 heads. I don't understand the flange questions nor intake terminology please explain , want to purchase correct intake first time buying a after market intake.

[techinspector1]

Originally Posted by truckboy61

I don't understand the flange questions

Not sure what you're talking about here, but if you want to make the most power from 1500 to 6500 with a BBC, then use either of these intake manifolds....
http://www.summitracing.com/parts/EDL-7161/
http://www.summitracing.com/parts/WND-8019/
If it is unacceptable that neither of these manifolds make power from idle to 1500 (no matter what the blurb says concerning the Stealth), then use a looser torque converter to get the motor up to 1500+ before it begins to pull hard.
If you need to make power above 6500, for instance with a circle track motor, then you should consider a single plane manifold such as the Edelbrock Victor series.

[truckboy61]

Thank you for the recommendations