If the studs are all the same length, and you can't get the nuts on only two of the rockers until you "crank the engine over", there is something wrong in regards to where the cam lobe is in relation to the rocker. How sure are you that your crank-hub is keyed correctly and that the cam was installed correctly and properly aligned to the crank and TDC-1?I think there might be a little misunderstanding here, just to clear it up, I did set my valves when they were closed, not at max lift. I just noticed that when I was setting preload 2 rockers nuts where hard to turn a 1/4, I should be able to turn up to 3/4 I believe, not sure why the 2 were like that. I thought I would be able to start all the nuts on the rocker studs but I can't, there's always 2 that won't thread on until I crank engine over. With stock stamped rocker's I can put the nuts on all 16. Going to try again. I would hate to have to take the intake and heads off. If I did, do you guys think I could reuse the gaskets? I don't mind buying new ones but, it took a month to get these ones shipped here. Thanks for all input.