Not long ago, my first cylinder was missing fire since my injector gasket was broken... However, after I fix(replace) the o-ring (gasket)... then, the car just worked ok... No misfire sound.... However, I didn't try to accelarate hard after the fix.

my setting now is... Comptech SC with 8lb pulley and aftercooler...
I am twisting my FPR clockwise, 1.5 turns to increase FPR pressure..
no aftermarket piggy pack or ECU..

ever since I fixed the injector o-ring...
Now, when I try to accelarate hard... there are booming sounds from the exhaust at 6000 rpm +

I am going to take it to the tuner in the town..
But, I would like to know what might possibily be broken or wrong?

Can it be running too rich ?
Bad spark plugs ? (6000 mile usage)

any opinion is welcome... thanks