miss firing.. help..

[HSK]

before 3800rpm theres constant miss fire when i punch the gas.
under normal driving conditions its fine. only miss fires when i floor my gas.

i am thinking its the spark plugs. thinking about changing the sparks and wires.

let me know some good brands for our 2g dsm.
also let me know if you think it is something else besides the sparks.

thanks for your help

 

[Defiant]

Plugs and wires are best first guess, and cheapest to fix. Also, the most likely suspects.

 

[gunnmetal]

i have the same problem man
but me its only when the car is cold, after 10 min of driving its fine
also there is a hissing or a vacum noise like 1 minute when i start the car it`s more of when a springkler starts and it chokes, nobody found what it is but im sure that why mi car misfires please if anyone know what it is please telle me
the nois comes from around the tranny and firewall area on a 420A.

when i drive on the highway i can smell gas, is it posibble that i have a fuel line that is leaking? it dosent smell inside. air gets in my fuel line? and when i start it make a noise like that cause the air comes out in a pressure????? PLEASE HELP ME TOO

 

[Sephroth57]

my preferred brands, stock replacement wires from NAPA, NGK spark plugs. you cant go wrong