to get the best out of the 288, your goin to need, minimum 10-1 comp, good heads, SP manifold, 4500conveter, at least some 3.9 gears, dizzy will deffinatly need to be regraphed, yes the 288 cam is avalible for all holden V8s.
your also goin to need some decen valve train gear,eg, lifters,push...