Suspected Missfiring At 3,000rpm

[MY33RT]

hey all

i have a 1993 r33 gts-t with a few bolt on mods it:

fmic

air-filter

cat back exhaust

hybrid boost controller

with the booster controller, its push buttion dual boost setting, low mode 7 psi and high boost 10psi.

when ever i am in high boost mode, under heavy acceleration or when i just hit 3,000 rpm on light to mod throttle, the car seems to miss and shunt forward and backwards until i back off the go pedel

ive changed the spark plugs and followed the checklist in the misfire topics but its still doing it

any ideas

dave

[MY33RT]

any ideas peoples?

[Link]

Id be interested to know too

Mine does it on stock boost tho - changed plugs, cleaned afm, changed coils and nothing has worked so far