Engine - 18GF, GH, GJ, GK
North America
High Compression
Distributor - 25D4
40897 or 41155
to 1971
Degrees
RPM
Dwell
60+-3
Static
10
Strobe
20
1000
Centrifugal
10
500
24
1625
30
3000
Max Vacuum
20+-2
Note: The curve and strobe data differs significantly to the 40897 listed elsewhere in the manual, maybe the 41155 is an alternative for this engine and the figures shown are for that distributor.