69 383 Performance

Guys,
I have a 383 in my 69 dart and I am not getting the power I think it should have. Currently I have TTI headers, weiand intake, and Edel Carb 1406 (600 CFM). I would like to get around 400-450hp out of this motor which I know it is capable of but doubt I am even getting 200hp.

Would like some feedback on carbs, looking at Edel 1411 (750CFM)- will my 383 struggle with this? Is there something better? I do not care about economy, I want power!!!

What other bolt ons can I install to get additional power?

I am looking to put in larger gears this winter in my 8.75 rear (4.10 or 3.91) I am not sure what's in there now but guessing 3.23. I don't know much about rear ends either so I will have to buy the whole center section or pay someone to install.

I wanna go fast and rip the tires!!!!

Thanks:prayer: