David Vizard / Uncle Tony...Small block Infos ?

I mean..it started bad , but when he did his race with Andy , it was still very strong for a 318, its not a 408 or a crate engine etc , theres not 15k shoved into it, my most reliable engine ever owned is my 400 hp mopar 360 crate engine , beat the hell out of it since 2005 ( i bought it in 2008 ) and it still goes very strong, i would love to do a similar 400hp engine with my 5x 318s laying around , but wanna learn some engine hp tricks
The basic 400 hp recipe is heads that flow around 225 ish cfm, 235 ish cam 10-10,5:1 cr 650/750 carb headers and airgap, better flowing heads needs less cam and worse flowing heads needs more cam.