We've all had problems with our cars, and like it was even mentioned previously in this thread you're looking at bad things which have happened.
No one ever posts about all the great times they've had in their cars, other then a few passes at the track.
I've had problems ... many ... but once it's running again it feels like it's worth every penny.
With that said, these cars are amazing and a true joy to own. I used to own an '02 GT which is awesome. All the bolt ons making just under 280rwhp felt like a rocket at the time. And then I was able to track down a Terminator with an equal amount of work done to it. I took it to the dyno within the first week of owning it to get a check of health and it put down a safe 501 / 500 with more or less a ported blower and all of the standard mods.
I would have been scared to death going over 400rwhp in my GT with all of the horror stories with the powdered rods and hypereutectic pistons.
Check this out:
A few months into owning this car I blew my Eaton (Steig Stage III - 17psi) up making a top end run, I was only going 150mph into 5th gear ... motor was under load ... I beat this Porsche to a pulp so on the way down around 100mph coasting there was a HORRIBLE griding noise.
I turned off the engine and coasted a for a little bit off to the side of the freeway (1am). The grinding didn't go away until I put it in neutral. At that point we thought it was the transmission until we came to a stop. The motor wouldn't turn over we later found out because the blower was grinding itself alive inside. WTF?
I'm cutting out a lot of the details but within a few weeks I had it back on the road with a Whipple. It felt like a lonnnnnng time, and several thousand dollars later it was awesome to have back. Since then I've installed the LDC Head Cooling mod, Whipple, 26 Spline Input Shaft, bigger clutch and several iterations of a tune.
Put a Centerforce DFX in, broke it in properly and just after that period the weights in the center went nuts and I had to have it replaced. Had a horrible clicking noise, and it was about ready to lockup according to the transmission tech who replaced it for me. Went to a SPEC Stage III + and love it.
A few weeks after that I went to the track and snapped my half shafts at the line. Was towed home on the last day of the season so I never got a real full out pass in the car.
The fuse on my intercooler pump blew once, so it ran hot down the TRACK and busted a few spark plugs and ran on 6-7 cylinders. Called it a day and babied it home.
I have a handful of other micro stories, but when you have a car making nearly 600rwhp you have to learn to deal with things breaking. There is no way around expecting a car with that much power to not have problems. Considering they were "rated" 390bhp, to suddenly make around 700bhp on a stock longblock with no upgrades is amazing!
I love this car ... Even though it's cost me a few bills it's a joy.
Definitely not a car to own if you're not able to shell out some cash to support it. Because it most certainly demands a lot of it. I could never go back to the anemic 2v.