i have a engine currently in the works,
that i later plane on turboing

Fresh 2000 5.7 vortec, 2-bolt main - stock everything,
LT1 intake, port match to the heads,
No EGR, either 24lb or 28lb injectors,
Rebuilt 5.7 "083 casting" TPI heads 3 angal valve job, Gasket matched, bowl work, mildly ported and exhaust fully polished, what comp ratio should i go with When i look into head gaskets?
iron logs, with cross over, 3" piping, back, no A.I.R or emissions, probably run no cat either, i was thikng of runing a LT1 cam, but what type of cam would be a good pick, heres the rest of my info...
Rebuilt 700r4 with shift kit, witch stall?
Aluminum drive shaft, 3.27, limited slip poise , what turbo should i run with this set-up? like exhust side. comprser side... etc etc...
i think all run a sinlge, but i want to run twins, they just look cooler, but its goingt o cost twice as much

anyways, any help would be great!

I'm no expert but here's some things I have learned during my buildup.

Compression ratio should be determined by your cam/heads. Pick the cam first for the operating range you expect your car to perform in, ie..daily street/nasty street or drag race. Then determine the lowest compression for that cam. Your heads can be milled or you can use thinner gasket to increase the compression ratio. Use thicker head gaskets to lower the compression. Best quench is as close to .040, that helps minimize detonation and has other benefits to the air fuel mixture.

Your cam will be determined by many other factors, best to speak with you're favorite cam company.

Nothing to add on the turbo's for ya. Definitely start with the cam, the rest will fall in place if you build it wisely.