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my old optima red top recently died. It was actually too small- short, I added a piece of rubber for the factory hold down to be secure. What group size fits the best under the factory hold down without modification? Also, are the new optima not as good as the ones from 10 years ago? I'd like...

Do any company sell, or widen factory GN rims? I'm not really a fan of the widened aluminum ones.

I read somewhere that Richard Clark uses Dino oil with ZDDP in his GN's. Besides being cheaper, what is the logic to this? Maybe less leaks? I would think that a true synthetic like Amsoil signature or Redline would be better for a turbo. I run synthetic and have a small rear main seal leak...

Can someone measure the distance between proper jacking points on a GN and let me know what it is in inches? I'm looking for a quick Jack lift system and need to know if I should get the standard or extra length. Does anyone use these? I'm looking at the bl7000ext. Thanks

Looking for an unused, chrome plated steel up pipe that was sold with the big mouth kits years ago. The one painted black inside. TR parts only has the polished aluminum ones now. Thanks

like the ones that TR Custom Parts used to sell with their big mouth kit. Now, I can only find polished aluminum. Not as shiny, and doesn't match the chrome items I already have.

I did online quotes for a $25,000 agreed value 87 GN from both companies. Hagerty was close to $900 per year. Grundy was a little over $200 per year. What's the deal? Is Hagerty overpriced, or is Grundy a crappy company? What company have you guys had good luck with, with classic cars? Also...

are there any companies that sell an 8 or 8.5 inch wide, steel GN wheel? I prefer the chrome over the new, aluminum ones out now. Thanks

I'm looking for the 3 inch up pipe that used to be sold with the Big Mouth cold air kit. It was chromed, and the inside of the pipe was painted with black POR 15. Mark does not sell these anymore- just checked. Maybe someone has one? Thanks

does anyone sell these anymore? I'm only seeing polished aluminum ones now.

Who sells a 3 inch stainless down pipe that will fit with the stock catalytic converter? I need to have a cat present for inspection. They don't need to know its gutted. It's just a visual check.

do your kits still come with the original coolant overflow tank, or do you use a Monte Carlo one now?

Has anyone owned both a Grand national and a GMC Syclone? I own an 87 GN, and am looking for a Syclone. I don't know much about Syclones. Can anyone chime in and give me a comparison of what to expect? What are its strengths and weaknesses? I do know that they have a wicked take off....but the...

I have a 1981 monte carlo that my parents bought in 1989. It was passed down to me in 1990. I drove it from 1990 to 1992. It has sat in my garage since 92. I had big plans for this car, but didnt have the money back then. Now, I don't have the time or really the interest anymore. Plus, i'm...

I'm thinking around 22 pounds...am I ballpark? Just want to know how high I can turn up the boost on alchy and still be pretty safe.

I remember a number of years ago thet the Walbro fuel pumps had some kind of problem w/ reliability. I think it was the M style pump from the mustang, modified to fit Gn's. Did they fix whatever issue it was? I don't want to upgrade to a piece of junk!

I have the TR Custom Parts Big Mouth kit with the matching 3inch chrome up pipe. I will be installing an alchy nozzle into it. My question is...is that these pipes are painted on the inside. It looks like POR-15. Will the alchy eat away at this paint, and what happens when it gets into the engine?

I'm thinking about going a step above my stock turbo while retaining the stock look...and keeping my stock torque converter. I guess that leads me to the TA49. How does it perform and how well does it spool in this application? any down sides to it? My ultimate goal is mid 11's.

This spring I am going to install a Razor alchy kit w/ turbo tweak chip to try to get the most out of my stock turbo and intercooler. What size injectors do you guys recommend for this? I would also like a little room for future upgrades to get into the mid to upper 11's. Are the 60lbs overkill...

I've been away from GN's for a while and have a lot of questions...especially dealing w/ alchy(so please bear with me). My car has the BSTC electronic boost controller installed. Is this any good? Its about 6 years old, so wondering if there is anything better. I dont have alchy, so never really...