Build suggestions for 340?

I guessed at your elevation.
I guessed at your Scr
Do not order a cam until you have the proper numbers because 164 psi is borderline too much pressure for open-chamber, factory iron heads, on best pump gas. You will loose more power if you cannot run full timing, than what you will gain with a few psi pressure.
And remember, full power means almost nothing in a 340 powered 1965 Barracuda with 225/70-15 street tires, with a clutch and 3.23s. Even a 318 can smoke those tires in that combo. How do I know?
Because my bone-stock long-block, 1973 318 winter-motor could..... with a 4bbl and my full-length, dual 3-inch pipes, in my 3650 pound tank of a 68 Barracuda..You know what the VP is on a 1973 318?
>at 930 ft;How about
Static compression ratio of 8:1.
Effective stroke is 2.89 inches.
Your dynamic compression ratio is 7.10:1 .
Your dynamic cranking pressure is 134.82 PSI.
V/P (Volume to Pressure Index) is 112
Remember the Ludicrous Factor?
3650/112=32.6 decidedly NOT Ludicrous

In your 65 guessing at 3100, I get 3100/112=27.68, Not Ludicrous yet, but; not too shabby either