Naw my f150 5.0 with afe and headers 1.3.4 and boss 302 and MSD and mt NGK 6509 hot range and oil filter k&n

What do you think about all this and what can i do to 400 hp in dyno ? Without supercharged

What about mass air sensor (jet) and tharmostat (jet) did that give me some power or what tell me people