i have white smoke blowing from my exhaust when i race when i drive normal im fine ive been told this is my head gasket so im going to replace it but ive never replaced a hg b4 and my shop that normally helps me is way to bussy to get me in i need it done asap so im going to learn as i go..i have herd i will i have to re-tyme it wen im done..is that true..and can ne 1 list the steps of how to replace the hg and maybe a link to a site that will help......help me plz i need done asap