what kind of engine to put into a 89 dodge d100?

[disturbed_metal_head_02]

i was thinking a 440 but im not sure i want to go for the biggest one that i can possibly fit in there if i have to mod the hood then that's no problem but which one can i do oh im doing it for racing purposes im having a ultra light body made an a rigid sturdy but lighter frame for it and should i keep the throttle body style or go carburetor or fuel injected? i hear so many different story's i not sure what to pick oh no limit on cash either i have a sponsor