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I'm assuming these have to do with emissions because of the vacuum ports. Just put a Haltech ecu in and need to know what I can eliminate. Thanks...

Short and sweet... Rebuilt engine. Part of the rebuild was the addition of Dart pro 1 heads. With 130 miles on it I noticed a leak. Used oil dye and black light and followed oil from bottom (oil filter) to top (machined hole on the back side of head). What is the hole for??? Why is it leaking oil?

Ok...so now that I have it back running with the new additions, I'm having trouble with rough idle. I was expecting a different idle with the much larger cam, but I can't get it to sit at anything above 400 rpm if I'm lucky and its warmed up. It has a new chip in the ecm to operate the new...

Firing engine for first time since most recent build. I'm getting spark, it even tried to start twice. Now I'm not getting anything. I pulled spark plug wire and hooked up another spark plug and watched it. It's only sparking every other rotation, timing light showing the same thing. Any ideas..?

So now I need to plug in my o2 sensor. Sounds pretty easy, right..? Well, I can't find the harness to plug the new o2 sensor into. I've looked all over the drivers side and can't find anything. Doesn't this harness run from the ecm to a plug that I'd plug the o2 sensor plug too? It looks like a...

I installed a tpis mini ram intake. Problem I'm having is the distributor cap is REALLY snug. As in very little rotation to dial in the timing because of cap hitting fuel rails. Any suggestions on a different distributor or smaller hei cap? I could go with a smaller distributor and a separate...

Hey everyone, I have recently updated my oil pan so I can go road racing. Problem I'm having is that even though it says right hand dipstick it is a left hand dipstick pan. If anything, its easier to work the dipstick tube through the headers for installation on the left side, but the factory...

So I'm looking at expanding my collection and purchasing a 1968 hardtop convertible with numbers matching 327/350 4 speed. 116,000 approx. miles, rebuild on the engine(w/o documentation). Beautiful vette... fresh red paint(seller backed vette into pole), clean interior, everything that's...

I have my front end pulled apart and ready to cut pads to do the final drop on the suspension. Which pads do I cut? The pads on the end of the spring (spring pads) or the pads located in the middle of the spring under the car? I read the link I recieved earlier, but it just says slide spring out...

I went and installed the longer bolts on my leaf spring thinking it would give me the stance I am looking for and bring down the rear end...it did not:mad. So, next step I believe will be coilovers. I've looked around and think I've found some decent ones. Before I make the investment, is there...

Went and got my engine punched out to a 383 and in the process got my plenum polished inside and out. Starting to put it back together and wondered if the runners could be wrapped in heat wrap in an attempt to keep the air going in to the engine a little cooler. I already bypassed the coolant...

Is there anything I need to do to the vette that might help it in this thinner air? It doesn't "sit" like it did in California when I got on the throttle. It just tries to take in air and isn't as crisp/responsive. I've had the battery unplugged as it's been in storage and I recently took it on...

It's been a bit since I've been on so I thought I'd post. The vette made it to Utah, thank you for all the advice to keep it safe during the transport. I got a great surprise when I went to find out if I needed to switch the registration over now or if I could just wait until this summer when I...

I'm looking for any advice I can get that might help make transporting the vette on an open trailer as painless as possible on both me and the car. I'm going to be moving the vette from California to Utah during snow and salt season. I tried to get it on an enclosed trailer, but one wouldn't be...

Going to start chipping away at my list of things to do beginning with the starter so I can at least get the vette running so I can start working on the clutch issues, again... Been looking around for a new starter and I'm seeing different mounting brackets on starters that all say they'll fit...

Rather than vent I'll just get to the point. Took corvette in to have clutch replaced after it went out last September. Took it to dealership and had it replaced( clutch, resivior, clutch pedal assembly,ect...) Got corvette back in November. Since then I have put a little over 2300 miles on the...

Is it possible to run the running lights on my 90' without having my headlights come up?

I've looked around and found multiple opinions on the proper way to refill the coolant system on a 1990 c4. I'm getting ready to flush the system again and want to do it myself rather than continue to pay 100 bucks an hour to have my mechanic do it. Draining the system seems pretty basic like...

Trying out a new cold air intake system and while removing the factory air filter housing I found a sheet of black plastic between the filter housing and the front bumper...no idea what its for. Do I need to keep it, or is it just a barrier for dirt? Seems that if its removed I'd get more air...

I've noticed on start up some blue smoke from the tailpipes on my 90'. Worried that I'm burning oil with only 46,000 miles on the engine, I asked another c4 owner what it could be. He said that in his case with his 89' c4 his L98 didn't come with valve guides and he had valve guides installed to...