Porting questions

[Gravy]

I've been working on the car the last few nights, porting out the manifold, O2 housing and the DP on the car, and i'm wondering. How much is safe to port off for starters. I got a gasket from a 80 something firebird for porting as i've seen on VFAQ and tuners. But that seems like a thin wall left in there. Will i run into any issues?

Also, any advise for a bitchy neighboor who gets mad at you when you spend a couple midnight-3am shifts running an electric air pump? I technically live in the city limits of Saint Francis, but with the size of the city limits, and the extent of the laws. Only city limit laws are in effect if you have city water, so there's no 10pm noise ordinance(sp?) durring the week. I've been porting in the mornings as well, but still have a good hour or two of porting... thank god i got a carbide bit today.