hows it going fellow enthusiasts i have eg with b20vtec swap and under crusing speeds it tends to cut in and out and sputter but under heavy throttle
it pulls vtec hard and seems to run great i have already swapped out ignition, fuel filter, pressure reg, throttle body, and aic valve any ideas????????

 

Your wires are probably bad.. Check the spark and fuel wires.

 

main relay maybe. Check your injectors. and your dist and timing.