340 Engine

hi, to all engine builders.
i have 70 340 good block, and $7500. who can build me a 450 hp engine.
it will be going into 69 dart vert, i have 904.( need rebuild), 9 1/4 rear(i do not know how good 9 1/4 is). please do not ask me a question what am i going to do 450 hp engine,i do not know anything about motor,other than basic turn up,oil change.
thanks