Do I need to due more work??

[supradrvr]

After cleaning my MAF with proper cleaner, my 1988 turbo supra would not stay running and just ran like complete crap.. I was told that I may have got the cleaner in the air holes of the electrical part of the sensor and would have to buy a new one. Searching the entire web I could'nt find any place where I could just buy the electric sensor alone and would have to buy the entire MAF for about $400.... I later read that the MAF for a 1994 Lexus LS400 is a great upgrade for this year turbo supra because it has a larger body.. So I now have the Lexus MAF and it bolts up perfectly... ONE PROBLEM... I just read that if I install this MAF, due to the much larger volume of air, my engine will be running too lean and will be damaged.. I've read that in order to use this MAF I will have to put 550cc injectors, get a new fuel pump and fuel pressure regulater and hoses, about 1200 dollars in parts that I cant afford... Does anyone know If what I've been told is correct or has anyone done this MAF change before?????