So I had a bad vacuum modulator and changed it out last night . I was going thru the tuning process using the tuning kit from ************** and have run in to a little trouble. When using the t rod to adjust the psi I can’t get the pressure to adjust down to the required psi of 42. If I adjust it any lower than 50 I get air coming out of the modulator. Am I doing something wrong? Any help would be greatly appreciated. Thanks!
Dave