Hi, I have been reading post here for a while, and more than a few times I have gotten some valuable info for my 1969 4-Door Buick Lesabre. I put a reman. engine (350 Buick)in it with a Holley Electric fuel pump and a Holley 600 carb. At first I had black smoke (too rich i know)but my car overheated the other day and now white smoke is coming out my drivers side pipe. My engine has less that 1,000 miles on it, but since it overheated I don't know if warranty will cover it. I suspect it is the head gasket, but I don't know. Please Advise. Thanks.