:) I got 620 hp and would like to put a new rear I was thinking of 3.73 or 3.90 but I doin't want to loss too much top end. I have had this car over 180 a few times. would like some feed back.

That's some great numbers! What all did you do to get there? I'm sure everyone wants to know!

So are you drag racing, just playin on the streets, or autocrossing? It depends on what you want to do. For drag racing it's easy...get the most gear you can, go 4.11's. If you want to go over 180, and I'm not sure where the heck you're doing THAT at! then you'll want to stay with the stock gears or even go lower if you're shooting for the big 200 mph goal. For general street the Z06 has damn good gearing. A little bit more dig, I'd say go with the 3.90's, but I've driven cars on the street with 4.56 and 4.88 (old school muscle, like my 67 GTO), so it doesn't bother me.

It all depends on how radical you want to go, and I'm guessing you want to go pretty far if you're putting down those hp numbers!

DTE has some pretty solid parts www.dynotech-eng.com

I did headers, suppercharger, cat backs, hurst shifter, fuel rails and injecters, dyno tuned, intercooler, street legal drag tires, 160 thmo. I know i did more but can't remember this has been going on for over a few years now. Problem is i can't realy race it because I have a crushed right leg and it don't move very well. One of my frends who used to race drags said he thinks he could get her into the 10's or very low 11's. I ran it at over 180 in Las vegas.

I did headers, suppercharger, cat backs, hurst shifter, fuel rails and injecters, dyno tuned, intercooler, street legal drag tires, 160 thmo. I know i did more but can't remember this has been going on for over a few years now. Problem is i can't realy race it because I have a crushed right leg and it don't move very well. One of my frends who used to race drags said he thinks he could get her into the 10's or very low 11's. I ran it at over 180 in Las vegas.

You ran this car at 180 MPH? Where? Track? Man I would like to run the car but have no idea where you can go to open them up?

:) I got 620 hp and would like to put a new rear I was thinking of 3.73 or 3.90 but I doin't want to loss too much top end. I have had this car over 180 a few times. would like some feed back.

All I have to say is that is one assume paint job you have! Great work! You have bigger pic?

I ran it out in the desert in Nevada, I was covering a mile in about 20 seconds

I do have bigger pics.

go to vette gallry page c5 page12, you can see a bigger pic there.Thanks