Is there more power/tenths in the regulator?
 

Im running a stock 302 with hyperpathetic pistons, GT-40Y heads, Gt-40 Intake ( fully ported) 65mm TB, PRO-M 77mm w/ Granitelli meter, 255Lph pump , Kirban Regulator , 24Lbs. injectors, 125 Shot.....The car runs solid @ 11.3 but is there power to be had at the regulator? Am I under injected? pressure @ regulator is set at 38Psi .......what's safe with the juice?

BTW This is a track only car......putting in a 306-347 unsure which but really wont be running the 302 block much longer.....

If you are going lean there could be power to be had but I doubt it will be much. To run those ET's with a 302 it must be in pretty good tune.

Hard to tell what will be "safe" with a combo. Read the plugs to find out! Lean on the nitrous isn't a good idea so change things slowly and watch the tune.

I would only go leaner if you were to tune it on a dyno. Unless you like changing head gaskets. :D

If you want to try leaning it out, just keep an eye out for the slightest amount of glitter on the porcelin.(sp)