AFR 7 Degree Valve Spring Retainer - 1.245 in Spring (Set of 16) 12102 and setup is as easy

and setup is as easy as turning the adjustment until you hit your target

1977-1979 Pontiac Firebird

2 O'clock Position

from 500 RPM to over 12

reduce fuel foaming and cut down

AFR 7 Degree Valve Spring Retainer - 1.245 in Spring (Set of 16) 12102 and setup is as easyProduct Description: Valve Spring Retainer 7 Degree 1. 245 in Spring Steel Black Oxide Set of 16 For over thirty years Airflow Research has been defining technological leadership in cylinder head manufacturing and flow dynamics. This complete commitment to performance has enabled Airflow Research's cylinder heads to find themselves on the fastest race cars and the most powerful street machines in the country. As every engine builder will attest to,