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Great hydraulic cam for 408-416 with wall to wall torque and power is the Ultradyne 231/239 @ .050 on 108, IIRC it's like .483/.500 lift.

Gives you the great 'big block' grunt and still pulls to 6K with peak power around 5500



Is that pretty rumpity at idle with its 108 centerline and duration? Is it significantly different sounding/running at idle than the XE275 at idle?

I've got: 416, E-brock heads, TTI's, Edelbrock RPM intake. I'm open to other intakes that fit under my stock hood. And I will clean up the heads some, but I can do more if it will be significant with my combo (I sort of doubt it). I run a 3.23 gear BUT I have really small diameter tires 24.5" that make it act like a 3.55 or more.