Has anyone heard from Jim Comstock recently?

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I picked up my head and barrel from Jim about a month ago. I had to wait a while but I am so glad I did. He does amazing work and the bike now runs perfectly. He contacted me as he was getting close to finishing the work. He was very busy with lots of work going on. He's a one man operation and we are lucky to have people like him to support our hobby.
 
I've installed several heads that JC has done the full rebuild and I'm impressed at how quiet they run and they all perform better than the two other machine shops I use. I would really like to know how he does it.
 
seattle##gs said:
I've installed several heads that JC has done the full rebuild and I'm impressed at how quiet they run and they all perform better than the two other machine shops I use. I would really like to know how he does it.
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Other than his great spring kits and porting work, I think part of it is how he cuts his seats, which is different to a normal automotive cut.

Valve seat cutting

I ran into several heads lately that had been rebuilt and the seats had been cut using a Serdi type seat cutter. The top cut on the seats were at a 15 degree angle which is the standard cutter angle used for automotive applications. Using this angle on a Norton creates a notch in the seat. I...
www.accessnorton.com www.accessnorton.com
 
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