Stop buying parts on Facebook with no direction.
Find and hire a reputable mopar engine builder/machine shop in your area preferably that has a dyno. Buy quality parts at the discretion of your engine builder and install/use to the manufacturers recommendation. Stay engaged with the builder to ensure you get the end result you want and don't lose interest or feel like it's not "your" project.
Don't go down the rabbit hole of spending money on parts only to become frustrated and end up rebuilding the engine twice at a significantly higher cost.