i bought a complete turbo setup from a guy off his 94 teg.it came with 450 injectors and his ecu which had already been chipped on chrome.my 91 teg is obdo,his is obd1.my first question is should i convert to obd1 and use the pre-chipped ecu,or have my obdo chipped.and if i go obd1, could i get away with running it without getting it tunned for a while(assuming it runs generaly ok) my next issue is with my engine.i,ve pulled the head,got a cometic head gasket,an arp head bolts,timing n water pump n all,new oil seals all the way around.the head is going to the machine shop monday (any recomends on a good shop around/close to ports.) outher than cleaning n resurfacing ,any thing alse i should have done?? and last,the system was set on 10 lbs,he said his engine was all stock,will my engine be ok with out any internal upgrades?what should i be watchfull for as far as engine problems after i install??