Comp cams xe268h for 318

dartfreak75 said
I know I'm not in risk or anything but if I were to build another engine say 10:1 scr and get in or about that 8dcr how do avoid detonation? Is is simply a change in fuel? Or can you do something to the combo timing jetting advance retard etc?

Most all of the things you mention will effect how close you come to detonation:

Octane
Ignition timing
Cam timing (raises or lowers DCR)
Cam duration (to change DCR)
Fuel/air ratio

Other things:

Combustion chamber shape - closed and smaller is better due to a faster burn... slow/long burn rates raise the probability of detonation
Head material - AL raises detonation resistance by running cooler on the inside surfaces
Setting up the piston and head and head gasket relationship to achieve a small quench gap
Ignition system - high spark energy makes the burn process start faster and a faster burn helps (like in a smaller combustion chamber)
Certainly few more that I can't think of right now LOL but these seem to be the most important for most uses