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turbo tweak chip is used on the back it has a label TT5.6 3173 40# ALCOHOL 23/21 23-25 PSI $25 stock chip from a 87 gn $15 pair nos gm front fillers $350pr pair nos outside door weatherstipping (window fuzzies) $125.pr stock air cleaner housing with almost new kn filter $30 used...

chip is used on the back it has a label TT5.6 3173 40# ALCOHOL 23/21 23-25 PSI $40 SHIPPED 631 978 8378

im out of room so something has to go. 87 buick grand national,newer black paint job, i would give it a 8 out of 10 original interior in very good condition. engine runs very well with a few minor bolt on performance items, fuel pressure gauge, lti maf,maf alum pipe black powder coat, k&n...

i need to know what the timing specs are for a 87 grand national and how do i adjust the timing, thanks

car is in very good condition,minor bolt on performance parts, interior is in great shape everything works except pwr antenna $13,950 631 978 8378

hope somebody can help i have a 87 gn, it has been running great last time out i noticed it smoking pretty bad when the boost starts to go up,looks to be grey or white smoke,when i drive it not under boost i dont see any smoke at all.also that night i drove a 40 mile round trip and it used...

i have a 87 gn, only mods done are red stripe injectors and a chip,also have a open kn air filter and a lt1 maf,lately i been hearing some pinging under full throttle,i been running sunoco prem,i have only had this car since last march and dont know alot about them,hopefully i can get some good...

i worked at a buick dealership in 1987 and always wanted a gn. i bought this 87 gn in march i finally got a few good pics of it :cool:

hey guys new to this buick stuff, took my 87 gn for a ride tonite,has a kind of sputtering feeling while at highway speeds, put car in neutral and it feels nice and smooth,i also tried it in different gears and still feels rough,i was thinking some kind of trans problem or torque converter...

looking for a shop that has a clue about my 87 gn, i dont want to just bring it anywhere, im not far from ocala or brooksville,thanks

have a 87 gn all stock, when it is cold it runs real rough on idle and will stall,it seems to idle fine after it is warmed up.anybody got any good ideas :)

Hello New To This Site,always Wanted A Grand National. Looking For A Turbo Regal Or Grand National 1986 Or 1987, I Am Located In Citrus County