I have a 1986 K10 Blazer with the carbed 305 in it. I think I am in need of a rebuild and am wondering how much should I expect to pay on a rebuild kit? If I do decide to rebuild it and not just put a crate motor in there I will bore it out to 327, if possible more. I know someone who is interested in helping me for free so I dont think Ill have to pay labor charges. But if that route doesnt work out, how much labor is involved and what can I expect to pay for it if I have to have it done at a shop? Thank you for your help.