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The car idles at 1200 rpms. I checked for vacum leaks but i can't find any. I also get knock retard at 15lbs of boost. I have a progressive alcohol system and running a TT chip. I first noticed this after a pass down the 1/4 mile. Could the timing in the chip have been thrown off. I acts like...

Can anyone show me the wiring schemetic for vss with analog gauges, or tell me where to find it. I have been without a speedometer since i purchased this car(87 GN). I have a scanmaster but the speedometer cable is not hooked up and there is a brown wire under the car that isn't hooked to...

My rear brake line on the drivers side has a bad leak under the driver's door. I think it has rusted out. Does anyone know where I can find one and the cost? I checked Kirbans and Gbody parts website last night and couldn't find them.

Does anyone know of anyone that can Dyno Tune my GN? I am looking for someone in the areas of northeast NC, Tidewater VA, or near Raliegh, Durham NC area. I really wanted JayC of Big Wood Racing but I can't get up with him. Does anyone have any suggestions?:confused:

Is the hydro boost setup from auto zone for a 84 GN a direct bolt on for a 87 GN?:confused:

I need to know where I can get the wiring setup and diagram for a vdo speedometer analog guage for my 87 gn? I have the factory 2004r transmission. I also need a speedo cable.

I purchased a new precision te60 in October and it was pushing oil into the up-pipe from day one. Has anyone else had this problem and who do you guys recommend to fix it, will precision repair it for free or do I need to call the vendor I purchased it from?:mad: I thought that precision made a...

I have an 87 GN, the car surges lightly and has a light stumble also idles funny. I was thinking that it was a vacuum leak. I found a bad hose on the ajustable vp regulator and it helped but it's still doing the same thing only not quite as bad. The car wasn't doing this until I drove it to...

Hey guys, can anyone help me with a problem my engine is running rich. My scanmaster O2's show 820-830's at cruise speed and when I step into the throttle it goes to 840-850's. Under any load wheather claiming a hill or WOT it goings rich. I can smell the gas at idle speed also. The fuel...

I am installing a analog VDO gauge, but because the car didn't have a working speedo gauge at the time I purchased it. I need to know everything I need to get the speedo working and sending a signal to the computer. I can really use a diagram and a list of the needed parts to make this thing...

Will the Jegs prostar type wheel 15 x 8 with 4.5 back spacing with 275/60/15 tires fit my 87 gn? The frame rails are NOT notched.

Can anyone please post pic of the vss hook up to the transmission and the vdo speedometer. I am going to install one and I need some help installing this. The car did not have a working speedo when I purchased it. I can get no help at all from the person I purchased the car from. Won't even...

Will a 275 60 15 tire fit a 7 inch rim? I need to know asap before I purchase the rims....Thanks.:confused:

My 87 gn smokes sometimes when I first start it up after the car is warm. The car does not smoke when starting in the morning or when the car cool down. It doesn't smoke on every start. The motor is a fresh rebuild, although I used the same turbo that came on the car when I purchased it 2 years...

When i first get into full trottle my scanmaster #'s through first and second gear are really low down to the 400's and then at the top of 3rd gear they go up into the mid to upper 700's. Is this normal? Are the numbers at the top of 3rd gear the only ones I should be concerned about? Is so what...

Can anyone tell me where I can get a front bumper plate with the buick logo and eagle on it? I have been looking all over please help.....

When my 87gn is at idle my scan master #'s fluctuate from the 100's to 800's. Is this normal?

I need to know what tire size you guys suggest? I am running a basic almost stock set up. I have a walbro w/hotwire, 42lb injectors, stage2 turbo, 3000 converter, poston 206 cam, adjustable fpr,duttweiler neck IC, stock downpipe with test pipe, and 26" MT drag radials. I went to my local 1/8...

Thinking of buying a 3" downpipe what do you guys think of the Gbodyparts downpipe looks like a pretty good piece.

I was building boost from the line and I hear a bump sound and the car starts to roll. Now when ever I try to build boost, at just below 1lb the car starts to move. It never did that before. I use to build 8lbs of boost from the line and it has a vacuum system. I replaced the master cylinder...