I fitted my cam last night and just want to make sure its all right. I tried to adjust them but couldn't set the lifters low enough. Basically, couldn't get two spanners on them to tighted the lock nut as they were so low, making the nuts close to each other with only 2-3 mm of space between the two. So I have doubled up the rocker shims, 2 rather than 1 and have now set them to 10-12 thou but on the lifters I now have about 12mm of thread showing. Just wondering if anyone else has had this problem?