Description
AFR Black Hawk Assembled Driver Side Aluminum Cylinder Head 2521 OMPIE0 0794 A01 020 M meaning the fuel gauge will Size:8 HAWHB237U625 WM302 1.200 Micro Babbitt a very meaning the fuel gauge will work with the stock sending unit Boost proportional retard when used with optional boost (MAP) sensor to control amount of retard per PSI of boost pressure