70 olds 350 timing Help!

[rogue_ryder]

What was done to the heads to accommodate the lift of the cam?
Why 4/7 swap? That's questionable old school thinking for a Chevrolet.

Definitely derailing this thread some, but an old HotRod article showed a decent improvement (11hp @ 5800) in a Chevy with a Lunati 4/7 swap
https://www.hotrod.com/articles/lunati-cams/

I'm not sure what effect it has an Olds... But in a Chevy the sounds is worth the swap alone

 

[fleming442]

All I'm saying is: if they're so great, why aren't they more common? Why didn't it EVER become the norm? It's not like switching two wires in the firing order is rocket science (Olds or any other make). Look out! Here come the black helicopters! They're on to me again; I've been seeing them for years. But, yeah, what up?