tune up needed? and cost?

[00 Ragtop Z]

The ragtop has 104,000 miles on it, and I have noticed for about 5,000 or so miles that when accelerating in 1st and second-as the revs increase-I seem to hit a flat spot where I feel like I am losing power. Other than that, still get good mileage (28-29 highway)

I'm wondering if I may need new plugs? Local shop estimate is $80 for plugs and $225 labor. Given that I have NO facilities to do the work myself, even if I was so inclined, how does the price sound, and do you think this may be my problem?

[raroZ28]

80 for plugs? My NGK's were like 35 for all 8. My wires were 80 tho. If that includes wires then that's not a bad deal for parts. The labor price doesn't sound too bad to me... I got quoted $500 for plugs and wires, labor alone. I think... Doing it yourself it def. a PITA, it'll take you a whole day, depending on a few things. What's $225 worth to you? If it's worth it to pay 225 for something that's gonna take you a whole day, maybe into the next day, just pay to have it done.

But back to the question, I think that's a decent deal on labor.

[Joshu]

I had mine done last month. Plugs and wires along with an oil change and new fuel filter ran me about 225. Runs a bit smoother.

[casey02ws6]

Changing the plugs on an LS1 is a bit easier than an LT1 but the biggest issue is cylinder #8 - same as the LT1. I think the price is fair but just make sure it is a good shop. I have heard horror stories of shops charging for work that they did not do. Maybe you could ask for your old plugs back to make sure they were all changed. A lot of shops will not change cylinder 8.

[Christopherrr]

do it yourself...sure it'll take6-8 hours of work time and 3-4 hours of just figuring out how to get them all. I did it myself and came out with plenty of busted knuckles, scraped skin, and a slew of unknow cuss words, but it's all worth it knowing you did it right. Besides, it's a bonding experience...plus you try to figure out what the hell GM was thinking in the process.