Cheap 318 build questions

Lunati also has some long snout (for mechanical fuel pump) HR cams.

The one I got has a .517 lift at 1.6 ratio and is just under where machining the guides comes into play (on magnum heads, you probably want to check what the 302s can do safely).

The LA roller should be 1.5 rockers, so that lift would be less

The HR cams are considerably more $$ than a flat tappet (like 3x), but you don't have to buy lifters since HR lifters are resealable, so that takes away some of the sting.

Springs will likely also come into play.