First off welcome to the board
Nice car too btw
The Z's engine with just a few bolt ons including headers, cats, plenum (upper intake manifold), exhaust, intake, and pulley will probably net you around 25 or so hp. It takes a lot to pull a few hp out of this already well built engine. Going in and doing new cams, lighter flywheel, etc can get you to a near 300 rwhp. Only a couple people have gotten their Z's over 300rwhp N/A. You will definately need F/I to get over the 300 mark. Many F/I setups are well over 400rwhp.
Engine work isnt too difficult for basic mods but I havent gone in and done serious engine work yet.
A few common problems have been cleared up. These include uneven front tire wear, grease streaks on windows, and a a couple interior rattles. Nothing serious though and the newer Z's seem to be almost trouble free.
Any more questions just let us know. Lots of good knowledgeable people here.

The Z's engine with just a few bolt ons including headers, cats, plenum (upper intake manifold), exhaust, intake, and pulley will probably net you around 25 or so hp. It takes a lot to pull a few hp out of this already well built engine. Going in and doing new cams, lighter flywheel, etc can get you to a near 300 rwhp. Only a couple people have gotten their Z's over 300rwhp N/A. You will definately need F/I to get over the 300 mark. Many F/I setups are well over 400rwhp.
Engine work isnt too difficult for basic mods but I havent gone in and done serious engine work yet.
A few common problems have been cleared up. These include uneven front tire wear, grease streaks on windows, and a a couple interior rattles. Nothing serious though and the newer Z's seem to be almost trouble free.
Any more questions just let us know. Lots of good knowledgeable people here.