mate im only a p-plater and money is an issue just wanna no stuff i can do at home
lol, sorry mate. was just kidding.
if you are looking for cheap cheap cheap, get yourself a can or GOOD QUALITY injector cleaner. maybe even two. spray the living hell out of your inlet system. take the spark plugs out (replace them if yu got the $$) and turn the motor by hand and fill your cylinders with the stuff (not literally, but put a lot in). once there is a good amount in there let it sit for a while. clena your MAF sensor with carby cleaner or brake cleaner. replace your filter with something that breethes a bit better.
i am ready for a flame with this one, but here goes. if you are game you can get your old filter and cut holes out of the paper in selective spots so that it keeps its structural rigidity but has gaps, then wrap pantie hose around the holes and refit. i would not do this because i can afford decent filters, but if your tight then you gotta cut corners. lol
make sure your dizzy is working in prime condition and the coil has a nice strong spark. if you whip out a spark plug, connect the high tension lead and hold it against an earth. then get your mate to crank the car you can see the spark. should be nice and white.
thats all i can think of for now. oh yeah plus what VKberlina just said. he was spot on.
oh yeah, a good home made cold air intake cant be beat. an old vacuum cleaner hose or pool filter hose or something like that, which would go down the side of the car either into the gap on the side of the radiator or pointed to the ground. but if you go with the ground option, make sure you put in a water catcher bend in (like a toilet), otherwise in the wet you may suck water into your inlet. not a good idea.
im done