Originally Posted by
95coBraSVT
No, but it may still be too much lift. IIRC, you need to stay below .500 lift. But I could be wrong.
Where did this magic # come from? I run a Erson Hi-Flow II 544 solid lift cam with press in studs on some ported 69 Windsor heads bolted on a 289 for several years. Adjusted the rockers regularly and never pulled a stud. Hell I sheared the pin on the cam for the timing chain and bent every intake valve and still no pulled stud.