Every single place I call I get a different answer. I think my valve seals need to be replaced and I called Paisley and Bullish and got dramtically different quotes. Paisely quoted me $800 to do the job and Bullish told me $1900. Does the cylinder head have to come off to do the job. Paisley told me it does not and Bullish says yes. What would you charge at SP to do this job? Thanks for your help.