If you are going to be building a forged motor you do not need oil squirter's. There only really needed for cast pistons.
The nice thing about not having oil squirter's is you then get more oil to the main and rod bearings. And the cams.
I was reading on here that some one said that 20-24degs of timing would take out your rod bearings. Not true. Knock is what takes out your rod bearings, or bends a rod. In my Galant vr4, I run 28-32psi of boost(turbo is a gt30r) depending on track prep with a max timing of 23degs. Never once, have I had a bearing go bad, From to much timing.
Once you get the rig up and running and you have a nice engine management system that can read knock. Get a good base line tune. Then from there set you boost that you would like to run. If the engine is not knocking start adding timing in tell you see knock. Once you see knock stop and take out a deg of timing tell knock goes away.

Oh and if using megasquirt take your time on the tuning. I have see a lot of people kill there engine using them. Most all the the cars I have see blow up using megasquirt was because the people got the kit and did all the soldering of the boards there selfs.