Could you pelasse vive some advice on my grow?

Hi everyone,

So i'm kind of new to this and i was wondering if you could give me some advice,i've been planing and reading the forum for like a week or so but i still have some doubts...so here it goes.

I'm using a 2x2x4 tent with some 250w hps with no cooltube and i'm thinking of only growing one plant in that space.i have a low budget so the only ventilation i could get was a blower about 10" tall that moves the air inside the tent a little but i also have a fan from my ps3 wich was broken and i think i can place it in If you think its necessary.i'll use a 3 gallon bucket and probably will grow some northern lights or some fast bud.

My issue was about the heat from the 250 hps with only that ventilation,but i guess If you see other problems you should point them out...also i was wondering what the yield would be in that conditions.

Sorry about any mistakes,english isn't my mother tongue ::wink::