Timing with a Procharger

Make sure the dyno O2 is the one that threads into the header. Not the one stuck in the tail pipe. EGTs are best stuck int he header pipes about 1" away from the header to head flange. As long as all of them are the same distance back from the flange, you're ok. If one is further away than another, it will read a difference when comparing two identical cylinders. I would say if you dont have them, dont bother with them. Just watch the A/F mix very carefully, and listen for any signs of audible detonation. Then, read the plugs for any signs of speckles from the pistons. Detonation is not always audible, but it is always destructive if it occurs for long enough. That's a brutal looking set of power curves tho. Nice job...