Sounds like a line bore is in order. I have used Peter for casework before. He machined my case for 993RS spigot quad rings.
Peter Dawe is up in the North East PA.
Engines - Dawes Motorsports - Porsche Race Engine Builders
These were a quick search on google for North East Shops.
Bill Pfister
Eurotech Advanced Automotive
14 Grant Street
Framingham, MA 01701
508.879.9911
pfisterbuilt@msn.com
Eurotech Advanced Automotive
Jerry Pellegrino
European Performance Engineering, Inc.
165 West Central Street
Natick, MA 01760
508.651.1316
EPE Home
Chris Musante
Musante Motorsports
1257 John Fitch Boulevard
South Windsor, CT 06074
860 291 9415 FAX: 860 291 9416
chris@musantemotorsports.com
Porsche Service CT - Porsche Repair & Service by Musante Motorsports