I finally found a donor head for my head gasket job(my previous head was warped). When the donor head showed up, the end of the exhaust cam was broken. So, I swapped the exhaust cam, exhaust side bearing caps, and exhaust side lifters and shims from the warped head over. I now have a couple of exhaust valves that are .003 in. too tight(.007 clearances). Can I run these valves this tight for a while while I wait on shims(I have to get the cruiser out of the shop its in ASAP)? And do ou see any long term problems with running a cam from another head? Thanks, Josh