Realistic Expectations - 11 second Demon weekly driver

Hi,
Been buried in articles and threads. Think I have a combo sorted out. I have a 72 Dodge Demon, full interior, factory suspension, etc.

I'd like to have a low 11 second car that i can drive to work once a week. A "friday car" so to speak. Then drive it to the track after work. 40ish mile round trip.

I've got a 440. Forged factory internals. 915 heads with 2.14 / 1.81 valves. From what I've read that may have been a mistake installing the larger size valves in the 915 head.

So the question is, having proffessional work done on the iron heads i already have vs buying indy ez or trick flow heads.

The rest of the combo is as follows:
Lunati solid flat tappet cam 243/251 @ .050. .546"/.566" lift with 1.5 rocker.
Weiand team G intake.
Holley 850 dp.
3000 stall convertor.
3.55 gears

Thanks for input, tear me a new one if i need it. If this won't get low 11's what's a realistic expectation between the ported iron heads vs mostly ootb indy ez or trick flow 240 head.