I have built ford engines all my life but never ran into this problem! We just installed a set of 225 Airflow research heads & at max lift' on inside the rocker' where the hole is that oils the rocker! they all are hitting the polly locks....We are using Lunati's right now but have also tryed a new set of comp cams pro magnums..... I have went in and notched the rockers and they still hit some.....anyone ran into this problem R can tell me if you need to run a different rocker??? i can post some pics of the rockers and show where they R hitting if needed.....i used a marker on the pushrods and know i have the pattern dead center.....thanks