I hate to be the one to say it but that is an unrealistic goal for a N/A 2.3 that you plan to drive on the street. It would take a lot more compression which would require race gas and you would need to turn it 8000 rpm or more to get over 350hp.....with a stock deck block you aint goin much over 2.5 either.
If its goin in an 84 I would HIGHLY suggest doing a 2.3t swap with a Merkur harness.With mostly stock parts its easy to break 300hp with these using junkyard parts.I know cuz my old 87 put 306 to the wheels with 95% stock junk.
Look around at the prices of the parts you will have to buy to build that N/A motor compaired to a stock 2.3t , you could build a nice stroked windsor for about the same price!
A few years ago I built up a really nice 84 2.3N/A motor for my kids first ride which I thought was gonna be a pretty cool ride.Wrong. I built a fresh 89 2.3 shortblock,ported & milled .040" round port head,RR cam,adjustable cam gear,ported pinto intake,modded Autolite 300cfm 2v carb,MSD ignition,header,4 spd trans,7.5 with a posi and 3.73 gears.I even tuned it with my LM1 wideband to get the carb setup right.My stock 98 3.8 auto Mustang could walk it without even tryin.
Just my $.02 and dont take it as a flame.....
BTW....you cant build the ultimate 2.3 beater,I already did!
This 87 was my daily driver 365 days a year for three years.
This was the motor in it
And this is what I did all summer.