What temp does the primary fan suppose to come on a stock program? Im trying to set my needle after remove for white face gauge.

 

1st fan comes on at 226degF. 2nd fan comes on at 235degF. There are variations on the way the fans are set up... one-speed, 2-speed, etc. - differs from year to year, but you didn't mention what year your car is.

 

97

 

Then you have 'late production', [3 relay, dual 2 speed fans..]
Low speed on at 226, High at 235..