Computerised Car Tune Up

in a forum, someone asked me and i answered him .i want to share it with all u ppl, plzz, help me in this TOPY DRAMA!

question was"the whole world uses computers to tune carshow can this be done manually. through hit and trial or is there some other way"
i denied it by saying
actually the whole world have a brain to think and mind to decide.but we...u knw there is only BHAIR CHAAL,e.g ppl spnd 9 lak rs on xli,tell me truely,is there anything in it on which u r spndng 9 lak rs?,2nd- ppl say landi renzo is the best kit, i say NO,i hav done a course frm italy by landi renzo,n u knw, comparitively to others,landi is worst kit.As its parts are avlabl and mechanix knw to repair it,ppl RUN for it,but u know,2 number 3 number--up2---8 number kits are avalabl in mrkt and cheapest 1 made in gujranwala but has same same exact copy of original 1 rather more finishing thn orgnl,ppl selling kits on less rates frm mrkt claims of less profit margin,actually in original kit profit margin is 2 low,so they sell copy and earn more,customer think he has suceeded...have u evr seen computer tune up in foreign countries?.. Actually tht displays only the values in %age ,means readings in values,not tht "car is ok now,engine is not good,adjust intake,advance ur car"...by values skilled brain of a MAN tune it up....and in our country,they hav simplest computers including rpm settings,distributor advancing gun and i think one thing more and to this they call COMPUTERISED TUNNING. a pakwheeler RAFFAY324 draged with an alto by his modded alto and b4 race,he tuned up his car by computer frm ENERCON,u knw wt,he lost by FACTORY FIITED CNG SIMPLE ALTO,so if tunning by computer is perfect(as thought)why did he lose?So,only computers are not required to tune up a car,theres need of a skilled man who cash all the resources...GOT IT?hope to ppl ask more lyk tht to vanish this BHAIR CHAAL.thnx