That is realistic goal but will still need to get the IC sorted and possibly WI to keep intake temps down. Like mentioned above you really need to get the mods sorted before completing tune. Colder plugs with tight air gap also helps control detonation. As you don't have a knock sensor there is limited protection for engine damage so do everything possible to eliminate those things which cause detonation.Hi Jim. Nope, definitely not shooting for 15 psi. At least not until I figure out what I'm doing. The Datsun guys say the T3's max out around 10psi anyway.
My goal is to attend a track day in August and not blow anything up! I'm quite happy with lower boost right now, 5 to 7 psi.
jim