1/4 mile time with factory fuel injected 5.9

Heads,rear Suspension, money, and time,lotsa time. Unlock the secrets.
Or just buy a crate engine,
Or get an engine from one of the FABO supporting builders. Drop it in and get started!
Don't forget about the front suspension, steering,and brakes; especially since you are gonna run street.
If you are gonna run 4.30s on the street, try and run a 2.45 low tranny, cuz with the 2.74 low, first gear will be nothing but a tire-fryer. Even the 2.45 will want an early shift.
Happy motoring!