M8 cylinder head upgrades for high lift cam

[NGOT8R]

Anyone add a SE-515 cam to the stock M8 yet? If so, did you upgrade the valve springs to handle the extra lift? I am trying to decide if I should buy a set of take-off heads and upgrade the valve springs and have them CNC ported (or not ported), or just buy the SE CNC heads?

 

[hulkss]

Anyone add a SE-515 cam to the stock M8 yet? If so, did you upgrade the valve springs to handle the extra lift? I am trying to decide if I should buy a set of take-off heads and upgrade the valve springs and have them CNC ported (or not ported), or just buy the SE CNC heads?

just buy the SE CNC heads

 

[NGOT8R]

Good advice hulk. I priced everything out and it is in fact, more cost effective to buy the SE CNC heads.