only firing on 2 cylinders ?

[waynerz wide arch]

morning all.........

i have a predicament.....

306 1.8 xs

was out the other nite playin with my flame kit..... reved it up to flame and ended up blowing out MY CAT..... i think most of it has now been blown out the rear end now BUT... when it went the engine manidgement light came on and now runs lumpy as fook..... i have pulled off the injectors one by one ..... and starting from the PASSENGER SIDE...... the 1st PLUG made no diffrence 2nd did also 3rd AND 4TH DID NOT either soo im asuming injectors 1 - 4 ARE DOWN ??

i have pulled number 1 out and stuck a 12v feed to it and makes a click noise asuming its working ??

ALSO have replaced ALL 4 spark plugs too

im pretty sure the CAT is empty as i had to BEAT it with a hamer to shif the loose crap inside rattling around

it only has 1 lambda sensor too and its BEFORE the CAT

hope this info helps to somone who may held shed some light on my predicament

cheers waynerz