Hey guys so problem is as said. If I ease into boost on any gear it doesn't miss. When I go wot it will miss right about 20psi. Just fixed a boost leak was a throttle body gasket. And replaced the plugs at the same time. Mods are hks intake, Evo 9 turbo, apexi 3" tbe, arp head studs, hks 264 cams. Car is tuned at 24psi by AMS.
Any input is appreciated, I have done searches.

 

Plug gap?

 

the next morning once i got to the shop i pulled my plugs back out and one of them was gaped incorrectly. now gaped to .023mm and problem is solved. thanks