So I got my timing chain on and all that today, went to go turn the crank and its hitting something. but thats with stock timing, which i was told stock timing would work fine. the pass. side is hitting, i havent even put the drivers side followers back on but that side probably will too. after i find out the intake center, can i just adjust the gears or do i have to file away the keyway? is there any other way to do this besides degreeing the cams?