[greg schroeder]

I set up my Superformance with a Roush 427R with single plane intake manifold and Pro-Systems mechanical secondary carb. Power and drivability exists at all RPM ranges, power is smooth at any throttle position or it hits like a hammer when the throttle is mashed and you can fart along in the 1600 to 1800 rpm range in 5th. It pulls like a mother from idle up to just below 7000 rpm. At the wheels it makes 475 HP and 460 TQ with a fantastic torque curve for performance. I have a dyno in my image gallery or check out the 10.7 @ 130 mph drag pass in my sig below.

Quite honestly I believe the carburetor selection and tune is more important than which engine.