Want to build a 77 360 suggestions please

i just acquired a 74 Duster with a 360, It did have a 318’, I want to build a 400+ hp street motor, any suggestions on which way to go would be greatly appreciated.
It has a mild cam and a a 360 Edelbrock manifold with a 750 Edelbrock carb.
The engine is pretty much gutless.
I like the 268 Voodoo cam, would like to build around that will probably also run FItech injection on it.
No LS for me
What's gutless? What is your goal for the car? Let me explain. A 360 with a mild cam and 4bbl, if tuned properly, should be around 325 hp gross? So if this is "gutless", and you think adding 75 hp will go from "gutless" to "world beater", then I would step back and access. Is there a certain E.T. you are hoping to achieve that would make you happy? Tell us a little more....