When the timing jumps....most motors will bend valves. Have you ever owned a solid cam and drove 2-300 miles a week? Thats why I had to adjust the valves, not press in studs. Was it the ideal set-up? No.. did it fall apart because it was over .500" lift? No. But it did work.
Pleas dont be another copy and paster from the internet and swear by it, and not have done it or have 1st hand experience!!!