Issue with dual exhaust cam swap

[Fkhuk]

I did the dual exhaust cam mod on a friend of mines car, and heres what happened. We put the motor at TDC with the lobes facing outward. I took the chain off and zip tied the gears. I put the exhaust cam on the intake side and rotated it four teeth counter-clockwise. I didnt touch anything else while the upper timing chain was off. I put everything back together aside from the valve cover and tried to rotate the motor to make sure everything was good and it would only go about a quarter of a rotation either way. I thought the lobes on the exhaust cam looked too big, so I just figured the lobes were going out further than the valves and that was stopping it. So I put the intake cam back on, and its still doing the same exact thing. I cant think of anything that would be causing this, so any suggestions would really be appreciated.

[Fkhuk]

bump.. anybody?

could it be valves hitting pistions?

*I have to lol at the fact that Ive had more response on a Z car forum than here.

[S13_RB25]

It can't be the valves hitting the pistons if its doing the samething with the intake cam back on! But I would suggest taking the cams off to see if the bitten end rotates by itself!