Stroker small blocks - what intake?

That's a medium sized cam for a 416. Have you put it on a chassis dyno? The dual plane might be restrictive for the long stroke over 4-5k. The Air gap ones I've built in most cases are mild and smaller cams, and the power is done at 5500, even tho the torque is hueg right off idle. If you have a low gear set, and a slick convertor, you may be better off with the single plane, or a smaller plenum single plane, like a Torker. What do you have now for an intake and convertor?