Does this cam require tuning?222-226w/566-569 lift 114 ls if not how much power gain thru long tubes and cat back?also how much lope?

 

Yes on tuning, medium lope, Loves N20, depending on other mods can achieve over 400rwhp easy with heads, and best of all, is not too hard on the valvetrain. IMO a good nitrous/street cam.

 

When I had that cam installed, I didn't NEED tuning right away, it had good drivability right out of the box. That cam has some lope, but nothing radical...no idle issues. With all the bolt-ons, stock rear, stock heads, M6 car, my best dyno was 377rwhp/371tq. Very respectable numbers.

 

That is a low number 375rwhp for that cam, a 216/220 can achieve 400rwhp with full bolt ons and the right tuning..