mazda 323 z5 engine,when i'm taking off i'm flat spotting?help me please

Do you mean it is not taking gas when you accelerate?

no,but when it flat spots it will pick up and accelerate

Sounds like a plugged fuel filter, fuel pump not sending enough pressure or timing off.

you're so right mark i changed the fuel filter on the firewall but stuttering(flat spotting )was still happening but slight so yes i feel it is those 2 things.not quite sure how to check my timing

What model year is yours?

1997 4dr sedan z5 engine

Yours does have a distributor. You can turn it to raise or lower the timing. Try turning it and when the idle raises you are advancing the timing. That is what you need to do. If this doesn't help the spark advance in the distributor may be bad and you need to replace the distributor.

do i need a timing light?

Advance it by loosening the bolts that hold the dist. and turn it. You won't be able to advance it enough to need a timing light.