What goodies do I need to build a Fast slant 6

Hi All
I’m wanting to build a fast cranky slant 225 6cyl !! Something between a drag, race engine but able to drive on the road.
I want it to have a lumpy cam and whatever else is needed to make some big HP numbers I’d like to get 300rwhp + .
I’m not a mechanic and don’t know what works to get that type of HP so I’d really appreciate it if those who have built these before, and have got these types of results!, if they could Please elaborate on what they did to there engines in detail so I can build something similar.
I have friends that are mechanics so hoping I can get the block, head and other engine bits and pieces and give it to them to put it together for me.
I’d really appreciate any help and you time letting me know.
Thanks
Do you ever wish sometimes you had a stout V-8? Or do you love the power and sound of one? Only reason I ask is aside from some of the rabid diehard hardcore Slant 6 guys out there that live and breathe and will do everything to help (and convince) you build a stout slant, you may be disappointed with the cost and outcome if it's your first Slant. It'll never satisfy like a V-8 I don't care what anyone says. Slants are cool, visually and can be impressive beasts but you WILL trade away street manners if lumpy lumpy and radical are part of the equation. Power boosters as mentioned would be your best bet, but $$$$$$$$$