Depends on setup. A good dyno tuner should be able to get it taken care of for you. With that said, I wouldn't push it past 16* unless you've got an excellent tuner and he's feeling balsy... And even 16* is high
Cool..right now Im running 15*...and a bit rich...I'm about to Invest in a BAP and ID1000 injectors...Im hoping I can get to 600 RWHP on 10 psi...Here is my graph on roughly 6.5 psi off the spring..Depends on setup. A good dyno tuner should be able to get it taken care of for you. With that said, I wouldn't push it past 16* unless you've got an excellent tuner and he's feeling balsy... And even 16* is high