yeah thats what i was trying to get across (without seeming like an arse) there are loads of sites like that that seem helpful but can actually be really counter productive to a newbie looking to spend big dollars on injectors unnecessarily, see according to that my chevy injectors are no good, when actually they run on 4 bar (round about 50 psi) which works out to be around 22lb. that calculator will tell me to buy expensive 24lb injectors instead of my 19's, which would make 24's around 27lb which is really unnecessary, given the 300 odd buck pricetag.
same problem as mace 1.9 ratrio rockers, pod filters, twin throttle intakes etc etc etc. people need to take all the info available online and really research the **** out of it, rather than taking one sites opinion as gospel.