I've got a timing light you can borrow. I'm slambed on saturday lots of stuff to do. By saturday night I wont know if I'm punch, bored or naturally split.

also o-ring at the dizzy will cause the look of the rear main seal. I know this due to miss diagnosis of old mechanic. He told me rear mail seal gone. we replaced it and the leak was still there. Change out dizzy oring boom gone.