My recipe for making serious non-turbo power is a '79 turbo longblock(9 to 1 forged pistons stock), D-port head shaved & ported with big valves, Esslinger solid cam(over .500 lift), long tube header, Esslinger intake with dual Weber 40 IDF downdraft carbs & a complete MSD ignition(billet dizzy, 6A box, coil & 8mm wires).
It's for my dunebuggy but in a few months I plan to stick it in my '80 hatch for a couple seasons on the street. I'm shooting for 225 HP but it's not going to be a great street driver with this combo. I got some great deals on some used parts for this build but I'm still in it close to $1500 bucks. Non-turbo power is expensive.