Cam Question
Because the 93 cam gear is splined for the Opti drive there are no easy T.C. upgrades, you would have to switch to a vented set-up.
Your not using that big a cam so you won't need to spin the motor that high that the stock chain will be an issue. I ran the Lingenfelter 211/219 cam with the stock timing chain for years spinning to 6,000 with no issues.
The link below shows the differences between the vented and none vented set-up is you want to see more.
http://para.noid.org/~muttvette/opti.html
JB


