performance?
 

what company's make power adding parts for the zx? :confused:

I noticed MSA Which is motorsport auto. Has some upgradable parts. Like a computer chip for the Turbo. And other kinds of stuff, and add-ons. Depends on what you want. Go to zcarparts.com. And order their new catalog. I just got mine on Thursday. Lots of goodies in it. I am sure there is other companies out there. Just look around on the web, and you will probably find more.

If you really know what kind of engine you are building then Summit Racing has lots of parts for the Z. If you're new at mechanics and are just looking for bolt-on junk, then MSA is the place. I spend $1000 on bolt-ons and got about 10hp at the wheels back when I first started. Do lots of research first and don't cut corners. Better left alone than destroyed.

where do i go to get a cheap ecu for a 70 280 zx

you mean a 1980 280zx?

no, he means an ECU for carbs. :)

ECU for carbs = screwdriver and needles. haha