So after nearly 10 years of dreaming...I've finally decided to jump back into the car world. I've wanted a third-gen Camaro since high school, and I finally pulled the trigger on one about a month ago. A huge part of that dream is building a motor for it (with the factory carb'd 305, it needs to go). I've searched, read, researched, and searched again.....although there are plenty of threads out there that helped me, I figured why not throw up a thread for my specific situation/goals and start a conversation.

My Goals for the car:
-383 stroker w/ carb. No EFI. Simple power.
-True street/strip. This is my 3rd vehicle. Will see weekend cruises, the occasional ride to the office on a sunny day, and the track 1-2x a month. Garaged in the winter. So things like MPG and DD reliability are irrelevant.
-Must run on pump gas (91-93)
-Close to 400whp running mid 11’s
-THE ABILITY to run a 75-150 shot of nitrous down the road. I know I wont be able to stay away from power adders. Won't go totally nuts but would like the option and to be able to run it safely.

The car itself:
-'86 z28, 74k OG miles
-factory bone stock carb'd 305
-stock 700r4 (will rebuild for more power)
-rear disc option w/ 2.73 posi

Budget: $5k-7k for just the motor. If I can get it done under $5k...well that would be amazing. I will be doing all the work myself and not paying for labor. Starting 100% from scratch - no block, parts, etc. to work with.

I originally thought of taking the easy way out, and going with a crate 383 motor from either Blueprint or ATK - either of which were capable of meeting my goals (including budget), except for possibly the nitrous part. A crate motor isnt ruled out, just concerned that ill put it in and essentially be stuck with no room to make more power (especially with cast internals). Any power-adder ready crate motors are typically too low of a CR too, since they are for blowers/turbos moreso than a modest shot of n02

What I'm looking for help with:
-Head Suggestions - thinking about going with iron vortec's to keep cost down, with the option of upgrading in the future. It would be OK to come in low goal-wise temporarily to get a new motor in there if the heads will keep the cost down considerably. Was also looking at Edlebrock top end kits to take the guesswork out.
-Cam Suggestions
-Rotating assembly suggestions - do I need to go full forged pistons, h-beam rods, and forged crank to run a 150 shot safely and reliably, or is that total overkill?
-Crate motor suggestions
-Any other advice!

Looking forward to chatting with you all about this. Just trying to get a plan together and start getting things priced out. I'd like to get this done within the next year or so.