OK, so I'm coming home from work mindin my business, stopped at a light, long ass stretch in front of me in which I usually enjoy stretching my legs out when I come home regardless.
This old black on black Buick pulls up next to me, 2 20 something chicks driving it...
They start like giggling or whatever, so at this point im really thinking WTF is going on here..
Light turns green I mildly slip out the clutch, and begin to briskly travel through the intersection, only to hear the beast next door romp on it and proceed to shoot through the intersection... time to play catch up, She didnt manage to gain anymore ground on me, and I reeled her in by top of 3rd before we both shut it down..
She was like "Damn, I didnt think you'd be able to catch up"... At this point I'm still in shock, until my dad politely informed me when I got home, that it was most likely a GN since it was all Black, and had no badging.
So theres my story, cars basic mods, FMIC, 14b 18psi, t-back exhaust, ported stuff, maf-t, etc..

Good job!

Modded those things are beasts!
Ever see the one doing a burnout on the dyno and still put down almost 1100hp!

My dad used to have a T-Type and it HAULED ass. They're not very fast stock, but it doesnt take much to get them going...

Oh ya grand nationals can be stupid fast real easy

If it was a GNX that you ran into they run 13.4 out of the box, the main limitation to those time's was traction. With modern sticky tire's they are signifigantly quicker.
My Mom had a 87 GNX, I got to learn to drive on it at 16 and I remember the licence guy, overlooking the fact that I couldn't parallel park if I would "giver" on a backstreet.

I dunno if it was a GNX, it looked pretty stock aside from a nice rear tire, with a clean dual exhaust.
No badging or anything I shoulda asked the girl what it was.

Well did you hear boost or not?

The only boost I heard was from my car, its got all hard pipes and a big intake pipe with no maf in front of it, its extremely loud and drowns out all other competitors, hehe.
I was doing a lil research on it on the net, musclecarclub.com, and to me it looks like it was either a Buick regal, or GN, and at one point it looks like those were the same cars or something, anyone shed some light on that?

The buick and the GN were like the T/E/L

The Grand National was a Buick Regal, just the musclecar version of such. As for it being a GNX, if it was you probably wouldn't notice, it just had a few small GNX badges on it that were quite small. As for hearing a turbo spool on it, they were not a large turbo and were quite muffled out from the sound of the exhaust etc.

Were there any different engine packages in the Regal compared to the GN, like was there an available big v8?

you may have noticed the turbos if it was Chris Chows TT Buick looking something like

Or check out the vids like the one of him smoking the tires on the dyno at almost 1100 whp here other vids here . The Buick Regal GNX was a 13 second car out of the box but not many of them so most likely a modified grand national was what you ran into.

History here

Yeah I want his GN I should of bought one when I had the chance. $6000 cnd from my buddies dealership... damn it. Oh well one day maybe. They can be stupid fast.

I believe the GNX were had some parts made out of Aluminum.
I have a friend in Scarbourough that collects these cars, he has 4 T-Types and 3 GNX's

the gnx had flares on the fenders, which were the main cosmetic difference between it and the regular GN.

i still have an old copy of car & driver where they test drove the GN.

But the big news for 1987 was the introduction of the limited edition GNX. Only available for 1987, the Buick GNX represents the height of Grand National performance. In a nod to the famous Buick GSXs of 1970-1972, the GNX logo featured a larger "X" than the other letters, just like the GSX logo. All GNXs began life as fully optioned Grand Nationals that immediately left the factory and were sent to ASC/McLaren Specialty Products in order to be extensively modified. The modifications included a more efficient Garrett air-to-air intercooler and a special pipe that connected the intercooler to the engine coated with CERMATEL (Ceramic/aluminum) for increased heat rejection and heat disipation. Front fender vents were installed to pull heat away from the engine while driving. The GNX also received a special Garrett "hybrid" T-s turbocharger that used a very lightweight ceramic impeller (as opposed to metal in standard Grand Nationals). The decreased weight allows the turbo charger to spin up much faster, thereby decreasing the turbo lag time inherent in turbo charged engines. Maximum boost was set at 15 psi and the turbo used an electric wastegate. The turbo also incorporated special low drag, dynamic turbine shaft seals, and a built in contamination trap. All of these modifications added up to 275 bhp and a whooping 360 lb-ft. To handle this extra power, the transmission was beefed up with firmer shifts and the rear axle received a longitudinal torque ladder bar with a panhard rod to help prevent wheel hop and torque twist. It also received a special rear axle housing cover made of aluminum (with GNX embossed on it) that serves as an additional strengthening element and point for the torque bar. For even more strengthening, the car body received special structural reinforcements in the form of "behind the back seat bracing" and special chassis (steel cross member between the chassis rails) bracing. The GNX was the only Regal to ever receive 16 inch wheels. The wheels were made of a lightweight alloy and the rear wheels were wider than the front. The GNX came with P245/50VR16 tires in front and P255/50VR16 tires in the rear. Special welded in fender flares were added to the wheel wells to make room for the larger wheels and tires. The standard transmission was a reprogrammed Turbo Hydra-matic 200-4R four speed hooked up to a custom torque converter. Inside, the dash had a special Steward Warner analog gauge package. All GNXs were black in color and the only exterior identification was small "GNX" badges placed on the front radiator grille and rear deck lid. Under the hood, a special turbocharger heat shield had "GNX" stamped on it, similar to the aluminum rear axle cover. All GNXs received a special numbered plaque mounted on the passenger side dash which identified the number of that particular car (1-547). Also, the Fisher body plate has "GNX" stamped on it. Special "GNX" decals were used on the intercooler and other locations and there were several hidden I.D. stampings to prevent fakes. But all of this came at a price. The cost of the GNX option was a whopping $10,995, which resulted in a final MSRP of $29,900. All out performance doesn't come cheap.
Production: Grand Nationals: 20,193 GNX: 547
Engines: Grand National: 3.8L V6 Turbo 245 bhp @ 4400 rpm, 355 ft-lb @ 2000 rpm. GNX: 3.8L V6 Turbo 276 bhp @ 4400 rpm, 360 ft-lb @ 3000 rpm.
Performance: Grand National: 1/4 mile in 14.23 seconds @ 98 mph. GNX: 0-60 in 5.5 seconds, 1/4 mile in 13.43 seconds @ 103 mph.

GNX has louvres in the front quater panels.

It doesnt have to be a gn or gnx to be fast.
Alot of people like V8s and Regals have em. Nigel said dual exhaust so Id assume it had a 350 in it. It probably had the typical Holley 650, headers, cam and camel hump heads. Which of coarse give it 400 greaser hp. Greaser hp being what alot of old school carb guys think their mildly done up 350s put out. :rolleyes: