Just wondering if the disks are labeled inside the FMU to tell me what disk I have in an install I did. I told the owner of the car to order an 8:1 disk (RC310's and 2 fuel pumps) for 10psi of boost but the car feels RICH even with base pressure set at 38psi (vacuum off) at 6-7 psi of boost.

 

No stampings. The calibration kit I ordered from vortech (with all the disks) didnt even have instructions explaining them. All I knew was the biggest one was 12:1 and the smallest is 4:1.

I have the others and the remainders are 6,8, and 10. Let me know the diameter and I'll tell you which one it is.