Code 21 on Rb20det is igntion dwell solution?

[gts_junior]

Hey Guys so I recently got my RB20DET tuned, list of mods are as follows
gt2871R
deutschwerk 750cc injectors
aem meth kit
nistune
Super spark Coil packs
Z32 maf

Now everything is running in tip top but before I had a a Code 21 pop before my upgrade, now its silghtly happening again, but only at high rpm's around 5000 to 6000, the plugs I am using are NGK BCPR7ES copper. Now when on the dyno at around 20psi the ignition was getting blown out by the amount of inductioin. Now i was wondering if adjusting the Dwell duty cycle and Dwell timing, would rectify this problem and if anything squeeze a bit more performance out. The tuner recommended an coil pack amplifier. If I was to adjust the Dwell, does anyone know what range I should stay in? the settings are dialed into the stock value at the moment, and I would like to know what range I should adjust the Dwell tables to ?

Thank you

Rob

[bachig24u]

might not want to push over 6ms@9000, not many coils fire 44psi boost and cold methanol.

we haven't had any issue with 20psi w/stock coils up to 7000rpm on PULP.
also added a 125hp NOS kit with no issues other than valvefloat at 7200+.

[gts_junior]

Okay i think i m gunna try changing to iridium plugs and then adjustin the dwell

[supersayianjim]

update on this??