Heck yeah, I had a freak 2.8, my cousin has a freak truck.

 

Have it dyno'd.

 

Factory "freaks" really only explain two brand new cars of the same make/model/trim/options that have a performance disparity. When it comes to cars with several 10s of thousands of miles that are both stock, any significant difference will usually be due to one being beat/worn/poorly maintained or having a bad component(s) causing poor performance.

 

Becouse I'm not original owner of these trans ams and most people get these cars used, I don't know every thing about them. But from this post I decided that when spring comes, the black ta will get a tuneup and slp exhaust and lid. Then I will if the two cars drive the same.

 

My tach in my car shows around 800-850 at idle warm. I hope my tach is off lol

 

According to your sig, you have an M6. The M6 LS1s have a different factory idle speed than the A4s. Here are the factory numbers for all '98-'02 LS1 cars:

A4: 650rpm park/neutral, 550rpm in gear
M6: 800rpm

These desired idle speeds are true for all LS1 F-bodies, unless they have received tuning to change them.

Some factory tachs are more accurate than others, so an individual tach may or may not be telling a lie. Only way to know for sure is with a scanner.

 

... You could do that... Or have it dyno'd to tell you how much power it's making. Then, you can post the graph here and people would be able to give you a better idea about what it has for mods based on the power it's making.

 

Thanks for clearing that up for me. It makes me feel much better now!

 

Both cars are sleeping through the winter. Once it gets warm again I will take both to speed shop for tuneup and upgrades