Are 30lbs too big?????

now that i say that, did you use any kind of sealer on the lower bolts? that could cause water seepage if you didnt and may explain the white smoke. When i did studs on my stock block i used pipe dope on the lower holes in the block to seal them up[/QUOTE]

I used a thread sealer on them but maybe not enough? NO way to really tell. I still think that i will try to change them out eventually