After talking to TA Mike and my machine shop today i dont feel there will be a problem with the cam. Due to the 4-7 swap there is the chance for interference but this can easely be delt with by my machine shop and at most may cost a couple hundred to fix. Unfortunatley i saw the post about this problem on the weekend and couldn't talk to anyone until this morning i got a little ahead of myself and thought i had just wasted my money on this cam, But after talking to them i am sure this is just a little bump in the road. If you dont want the 4-7 swap TA may make some cams with the normal firing order