What Psi Should I Run @ The Gun ?

I TOOKAN AUTO BODY CLASS A WHILE AGO AND SPRAYED PRIMER ON A COUPLE FENDERS, BUT I CANT REMEMBER WHAT PSI I RAN. I KNOW I HAD A REGULATOR TO REDUCE IT BUT...HELP

ALSO, ANYONE KNOW ABOUT TINTING PRIMER ?

The pressure at the gun will vary depending on the equipment, and your own personal preferrence. I would look at the gun manufacturers recommendations.

Run your gun at 40 to 45 PSI for most primers.