Roush engine ?

[vegasmike]

I am 200 miles into ownership and love the 427 sr/tw. I will say this though, the car would rather go fast/accelerate than go slow under 2000 RPM's, but I have not had any problems driving in traffic. I have yet to stall it out and have not experienced any run-on at all.

Just make sure you have a good dealer and installer. Where are you located?

[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.