THanks for posting, I got to see two 100S's at the Healey Werks anniversery show about a year ago, one completely restored, the other unrestored, was quite thrilling for a Healey nut, lots of differences from a standard 100.
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Current--
1979 MGB LE
1968 Triumph TR250
Wish I still had--
1954 AH 100
1966 TR4A Solid Axle
1967 AH SPrite
1967 MGB GT