Yes I know! To many leftovers from different builds! Have a pair of W-2 also if they fit the cam better! But then the headers dot fit well on the exhaustport!
Myself... I would run the W-2s.. cut the flanges
off the headers and weld on new ones for the W-2s..
its a pretty simple job IF the tubes are big enough
for the rpm you will run.. as Fast said.. forget the
hyd cam.. it'll never make the rpms you need
EDIT
For the headers.. I normally make a mandrel that
I would drive into the tubes at the flange for the
shape of the port.. pretty simple.. heat some times
was needed.. most of the time it wasnt
