Comp cams xe268h for 318

you can use one size shorter duration with the Howard (15) footnote cams or the Voodoo or a custom grind from Bullet, Engle etc- going for area under the curve not lift

in my mailbox yesterday
Valvetrain Geometry 101 With T&D Machine Products
same song different verse- note where they say machine work required...
B3 I think has a better answer for us MOPAR folks ( but this article takes some thinking but less confusing than a Jessel article I read and we know how screwed up some of the camgrinders articles are.
What I think is to ignore the talk about center of the valve stem and concentrate on narrow pattern and how to get there T&D is using mid lift
once you get the mid lift narrow pattern set then you can worry about center of the valve stem but remember a roller gives a straight line force in any case

Isky E4- dates from before 1957 if I remember correctly I think they came in the trunk with the dual quad for the T Birds...

A LOT OF DIFFERENCE IS SPRINGS SINCE THEN
a .904 grind may NOT be as radical as a .842 grind and as I said you can go one size shorter if you are short on compression
I know the DC, Engle and Crane .904 grinds are pretty easy on the valvetrain IDK about Comp HL, or Howard (name your poison but we are not doing hyd spec race motors here)