Re: smoke on startup
If it smokes on startup, On a chevy it's 99% of the time just valve stem seals, dont worry about it, If you have good Compression, the valves are fine and sealing well. Every Vehicle I have owned Has been chevy (other than 1 Ford Mistake) have ran high miles, 175000 + and all of them started smoking at around 100,000 seen some of them run well over 200,000 Leave it alone, spend some of that head job money on something fun, Like a Winch!!
My truck is not rusty, that's caked on mud. Jason