Yea i got mine in 2002 figuring I use my Team G and Crane rockers $1999 from mancini's everything I need. So first after talking to indy about porting bought the indy intake $$$$ so opened ports to max wedge and some porting. (4150 2 inch adapter spacer up to 4500). Had to buy the valley plate more $$$$. (add says everything you need in kit???) Used my crane gold rockers and mt valve covers.
Later thinking about welding in pushrod pinch (or having a friend do it) so I bought Crane .500 offset 1.6 rockers (say for max wedge and stage 6??) anyway get pushrod pinch welded and port straightened out upgrade to 2.25/1.81 Manly sever duty valves and find .500 is not enough offset.
Buy Indy brand .800 offset 1.6 rockers which don't come with shafts so MP shafts more $$$$ eventually acquired used Harland sharp rockers that needed shafts.
So in the end I have more $$ in than if i had just bit the bullet and got a 440-1 kit and I still don't have the valve covers.
So when anyone askes now i say go straight to the 440-1 kit and in the end you start right where you want to be save for the porting?
Live and learn.