426 stroker dropped in scamp

650+. Wiseco and custom ground comp cam. Solid roller of course. Thanks for comment
650+ is that without nitrous
650+. Wiseco and custom ground comp cam. Solid roller of course. Thanks for comment
650+ without nitrous ? color me impressed spinning to 8800 rpm damn , you have to let me in on the secret to getting it that high . best i can do before valvetraine quits is 7200