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I would like to give props to a couple good vendors that support this site and give information about a not so great vendor connected to this site. I am on my 10th tour in the Middle East. I saved up enough money to rebuild the motor on my 10,000 mile GN. Doing a lot of performance upgrades; I...

1987 Buick Grand National $19,995 This is an immaculate matching numbers car. A 10 second car that gets 21 MPG with the ice cold A/C on. Over $40,000 invested. Book with full documentation of car from the build line to latest mods. This car has won several car shows and is fun and reliable...

I was getting 435 RWHP with this turbo. Nice upgrade. It burns a little oil, might need a rebuild. $150 plus shipping paypal only

Less than 1000 miles on them. I decided to change my combo to 60Lb injectors. $150 shipped paypal only

Im running a TE44 with 42lbs injectors and alcohol injection; I want to upgrade to a T60 turbo; Do I need to upgrade the injectors as well and if so to what?

I smoke up the MT's real good and the launch is fine, but when I hit second gear the tires break loose really bad. Anyone got any ideas on how I can gain traction? Ive heard about changing out the upper and lower control arms with adjustable ones??? Adjustable shocks???

Has anyone used Pats converter and can recommend it or not? Im looking at Pats simply because of price, but Ill spend more for a PTC if its worth it.

I just did my test and tune of two passes and on the first pass I launched at 4# and ran 11.8 with a 1.7 60 ft time. It seemed at the end of the run I was running low on fuel and didnt have enough motor/red lining. On my second pass I again launched at 4# and ran 11.6 and same 60ft time. I had...

I just bought a used maf translator and it did not come with instructions. I am using a 3.5 inch ls1 maf. Does anyone know what the starting setting should be for the 4 white switches?

I just installed a set of 42lb injectors, te-49 turbo, and a rjc power plate. My question is should I keep the fuel pressure at 42lbs where I had it set for the stock injectors? The car ran perfect with a stock and alky. I know things vary, Im just looking for a place to start from, from people...

I just installed a TR Custom FMIC and my boost went up from 17# to 22#. My scanmaster reading is 0 knock and 760 O2. Full tank of 116 octane. Why would my boost go up???????????

'87 GN with 32k miles. Stock except; Bowling Green 93 chip 255 pump hot wired w/ regulator set at 43 and no cat. converter and 3'' exhaust. 3.73 gears. I just got a scanmaster and here are my readings o2 800 AT 5 L8 28 Retard 8.5-6.5 scary two passes in third gear INT 133 BLM 152 CLT 176...

Hello everyone I'm new to the GN world. Previous experince with C6's, Trans Ams, and turbo diesels. I'm having an issue with ordering parts; 1. Poston Buick- 14 days and they still have not shipped. Debitted me immediatley. 2. Kirban- sends me an email stating they have shipped. Then the next...