650 OR 750

[350blazer]

I HAVE A 406 SBC WITH FLAT TOP PISTONS AROUND 9.5 TO 1 WITH A 501 LIFT CAM WITH DART IRON EAGLES WITH 2.05 VALVES I AM WANTING TO GET A SPEED DEMON BUT I DONT KNOW WHICH SIZE A 650 OR A 750

[knudsonm]

at the very least 750CFM if not bigger

[Zack]

It all depends on what kind of RPM\'s you plan on turning out of the motor.

[basementdweller]

On 2002-12-22 22:40, knudsonm wrote:

at the very least 750CFM if not bigger





i agree http://www.s10v8.com/images/smilies/icon_razz.gif

[360hp350]

yep at least a 750

[Zack]

I don\'t remember where my cfm flow chart got to, however I do remember that a 100 percent efficient 350 that runs at 6000 rpm\'s needs 608 cfm. Therefore, a 400 would need more cfm at 6000 rpm\'s due to having more cubes. I would also agree on the 750, especially if you\'re going to be turning more RPM\'s out of it than 6000.

[my454s10]

750 or bigger ...750 would work real good...don\'t want to go to big...don\'t want to go to small either