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87 gn when under accel heat comes on full blast (not blower just temp) at idle seems to get cooler a/c compressor works (134a system) pressures good, any ideas? I did replace the one way valve under hood. are there any others? Thanks.

ok so I got tired of my 87 GN being too quiet so it unbolted mufflers and put straight pipe in place. now its way too loud, muffler ideas?

Who sells the best "bang for your buck" downpipe? Mostly stock 87 GN

Who's has most bang for buck? mostly stock 87 gn (has 42lb. inj. and tt chip)

Who makes the best affordable pipe? Would like one with dump option.

Took my 87 GN out today, good fuel (93 sunoco), about 88 degrees outside , i got into it and looked down at scan master and saw 10.3 on knock! Backed out of it and it has not done it again. Should i be worried? or was it just a fluke? I try to mix 100 octane and 93 as much as possible. (Boost is...

Nice day so i took the buick into town for a beer (87 GN) . ran great !! On the way home started to run like crap!!! light throttle surge smokes black, etc scan master not throwing me any codes. stopped in a parking lot and looked for obvious vacuum leaks but noyhing found. i did unhook...

HELP since some dip shit hit my r/f fender in a parking lot i need a new GN fender emblem i looked at kirbans and they only sell them in a set of 3 for 259.95!!!!!! any suggestions?? Thanks

Went to kirbans open house this past weekend what a blast !!!! Caravan of 12 or so gn's awesome! Car ran great both ways i've never had it that far from home. So i got home and decided to take the wife to dinner in it. Took 10 min. to find "the right" parking spot,and wouldnt you know it some...

Pretty stock 87 GN 90,000 miles. took it out today for a nice drive (live on the east coast ,dont get too many warm sunny days in march) about 20 min into drive trans started to shift very fast when leaving a stop sign. It actually felt like it was going from 1 st. to 3rd. and then od in about...

I've been working on cars for 25 years owned this car for a year and it has had a stumble at high boost since i got it. I looked at plugs before but they looked new so it put them back in. Today i decided to put a fresh set of a/c plugs in gapped them to .32. So i had to try it out , WOW this...

are they both the same or is one better than the other?

Anyone have one they are selling?

just install turbo tweak 42 #injectors and chip, under heavy accel spits. dont have scanmaster yet boost set at 15 psi 93 octane sunoco fuel it was doing this before chip and injectors fuel pressure set at 42psi w/vac hose unhooked any help would be appreciated!!!!

What size drag radials fit best on stock 87 rims? Not planing on using them all the time. Any advice on brands? Thanks

How do you contact them? I have sent e-mail etc. would like to order injectors and a chip but no response. Any help?

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basicly stock 87 gn 88,000 miles under heavy boost spits.boost is set at 16 psi,good fuel (vp c12) it does have an 02 sensor code. can that cause it to spit?fuel pressure is set at 40 psi . Any help? Thanks

cars runs 14.01 basically stock would like to be low 13's high 12's whats the best route

light and dinger go off even when seat belt is on 87 GN