65 Barracuda 318 Rebuild, Cam, timing, lifters maybe a kit?

Keep it simple
chain and gears obviously
take two lifters out and keeping one in each hand and remembering which lifter came out of which hole and place them bottom to bottom and see if they are cupped
the should rock against each other
If you see daylight in the middle it's new cam and lifter time
you can inspect the cam also to see if the lobes are rounded- the wear pattern should not be off the edge
I would NOT buy and Edelbrock cam and kit
you can get exactly the same thing from Elgin or Summit much cheaper (where does Edelbrock get them???)
Edelbrock reboxes they do not grind and they but the cheapest and sell at high prices- and the cams they sell are 50 year old designs for a chevy
(end rant)
Rusty says the best cam for a stock engine is a stock cam and there is wisdom in this
That said if you want a little more torque, get up and go (for get more top end) there are "RV grinds that work
see if you need a cam and post back
Incidently the valve job and valve stem seals have to be shot- the seals have hardened and may be in the pan :)
valve job more important than new cam