Aluminum vs Iron compression on pump gas

Dgc,

Is yours a stroker ??
And if you could tell me your elevation?

My Cam will not make enough vacuum so the canister has been removed.
I had the dist redone by Don at 4secondsflat.com FBO systems.
He is saying my initial timing should be set at 24 degrees and the mechanical advance is set to 34 degrees at 3400 if I am correct. I will need to pull out the card and check it. I will check it later today and post if I am incorrect. My cam has .614 intake lift , 256@50 the exhaust is .624 260@ 50 with the intake valve closing ABC at 51 degrees.

This is with the eddy heads.......

Then the Eq's