Are FMU's Safe?

The title says it all....are they?

I really want a Novi 1000 or Vortech SC-trim kit, but I don't have the cash to drop on the kit (1,700 or so), a new MAF, the injectors, the tune, the fuel pump, and whatever install I can't do.

I'll probably be able to install most of the kit myself, with the exception of the fuel pump. Will my car be "in danger" running an FMU and the stock 19 lb/hr injectors with a basic dyno tune (timing/fuel pressure)? I will be switching to a new MAF/larger injector/chip tune when I can afford it.

Lastly, what size injectors should I shoot for in the end...36'ers?

Thanks!

Danny

Thanks for the info guys. The supercharger kit will probably be available by the end of the summer, if I decide to go with it. The $500 tune, $250 injectors, $150 MAF, etc. will probably have to wait another year. Oh well, I'll figure something out.