Re: 355 in my 84 z28
What does the drivetrain consist of? With a manual trans and a 10 bolt you'll struggle to see that kind of power, maybe 320rwhp. If you've got an auto, you may not even see 300rwhp.
Any more info on the cam grind?
Going to a hydraulic roller and a better set of American made aluminum heads (not Edelbrock) will help you reach your goal. Funny how a company named Patriot uses Chinese junk.