[ezza]

I recently got my car running again and want to get the timing etc bang on, I fitted the cas as per the fsm but obviously you can advance or retard the timing.

How do i know if I need to advance or retard the timing?
The car is a Jdm s14 sr20det, now has a 1.3mm metal hg, straight through 3.5" exhaust, tubular mani, ss elbow, fmic, apexi profec e-01, if any of these things are a factor.

Also what boost am I safe running?

Any help much appreciated,
Thanks in advance