How much CFM does it take

[Mike Pearson]

Originally Posted by BallastBox

Thank you for your replies. Using the Edelbrock head part# 60887. Port volume is only 185. It is a super stock engine. Camshaft is .679 lift, duration @50 is 280 intake and @50 is 286 exhaust. Any chance I can get close to that figure. I realize this the cam is not radical. How much is a firing order swap worth?

Firing order swap is worth nothing.
FYI. I dont think you are legal with that head volume on your combo

[BallastBox]

That cam is HUGE, now that's funny. It is a virgin head. Do not know what the flow figures are. I would guess cfm is probably around 230 to 250 range. Cam centerline is 108 degrees, 185 port volume is what it comes with.

[Mike Pearson]

Originally Posted by BallastBox

That cam is HUGE, now that's funny. It is a virgin head. Do not know what the flow figures are. I would guess cfm is probably around 230 to 250 range. Cam centerline is 108 degrees, 185 port volume is what it comes with.

I will give you a call tomorrow to talk about the port volume.

[Henrys Toy]

Originally Posted by Mike Pearson

Firing order swap is worth nothing.
FYI. I dont think you are legal with that head volume on your combo

Mike is correct on the firing order swap, I would concentrate more on rocker ratio's. Is this a Q-Jet carb or Holley combination? If its a Q-Jet getting the correct adaptor blended in and the space between the top of the carb and hood clearance is important.
Since this sounds like a new / start up combination changing rocker ratio's with your current camshaft will help your Cam Mfg. determine a better future cam and ramp speed selection.
Now a lot of other engine details become more important in making the required Horse Power. Oil pans and pumps, Headers, Intake Manifold selection as well as Valves and Valve Job angles are all going to become key players in your search for the 650 HP number you're looking for.

Respectfully,
Henry Kunz 1534 Stock