Wood's '408' low-buck Magnum build!

5 speed an od?
shaft rockers? run what you have or iron rockers
roller tip rockers require a B3 kit to work properly
do you like the rpm range on the cam you have?
run it or get a cam with just a touch more duration for the additional cubes
you'r not building a race car
easy to change the cam later and awfully hard to pick anything better without seat of the pants experience