Im working on rebuilding my 94 A4 Z28, Im going with .030 Flat top pistons, LT4 Hot Cam Kit and a couple bolt ons, Im also planning on getting 373's, around a 2500-3000 converter, mid lenght headers and a mail order tune, what HP range and 1/4 times do you think I could be making?

I would also love to know what mods you have and what times your running.

Thanks Josh

 

my guess if you got traction would be mid 12's at 108-110

 

Depending on DA I believe the mid 12s mentioned are about right. Run no less than a 2800 stall converter and make sure you buy a quality one and not a cheap piece of crap. Add a good trans cooler and shift kit too.
Try and keep the compression up as high as pump gas will allow. With the heads spend a little money, have them at least pocket ported and a good valve job. Also spend a little extra and upgrade to a better spring than what comes with the Hotcam.
There's more, but I'm sure others will chime in.

 

Mid 12's

With LT's, Full Boltons

Low 12's

 

What exactly would you consided full bolt ons?

 

yea mid to low 12's. depending on what you do.