I'm new to TR and was wonderin if anybody could help me figure out what the actual cause is. Around christmas break I blew an exhaust valve, the car was already smoking at this point but only when I slammed on the gas. Me and a couple of friends re-built the whole head and put it back on the car. Now it smokes worse than even and the only answer I get from people is that I didnt machine the head before I put it back on. If this is true does anybody know any good machine shops??( I heard Clearwater Cylinder Head is good) Any help would be appreciated