Soooo...lets see...that would mean that you just about want it all-the perfect '
stang
The best advice I can give would be to stay conservative. Don't over build. You should be able to get her up to around 300HP without to much trouble. That may not sound like much but is really pretty respectable for a 289.
So here's the recomendations, we'll all have different opinions, so take this for what it's worth...
I'm assuming this is a fresh short block if not then the first step is to rebuild the bottom end with QUALITY parts...
Dual plane hi rise, Weiand Stealth or Edelbrock Performer RPM
Autolite 4100 four barrel
Ignition upgrade
Tri-y headers
You already have heads picked out-I'd suggest you stay with 1.94 valves rather than 2.02's
Keep the cam at around 220 duration and .470 lift (at .050 lift)
No more than a 2400 rpm stall converter
street/strip shift kit
3.50 gear (no more than 3.70 unless you add an AOD)
export brace
monte carlo bar
subframe connectors
traction bars
front disc brake upgrade
good quality shocks
and be sure the car is structually sound...solid frame rails, torque boxes and floor pans
Good Luck...
Mike