Pick something on the small side and keep the overlap low. You have to be really careful with cam selection when running exhaust manifolds. If the cam is too big the back pressure from the manifolds will cause reversion and bottom end torque will suffer. To make matters worse, the big cam won't make more power up top either.

On the flip side if you go with too small of a cam then the torque will be great and you'll only give up a small amount of top end power. I used to do a lot of cam testing before I figured out that it was costing me a fortune and I wasn't getting paid for it!

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