340 camshaft question, yea another one.

I'm just here to help.

It is my opinion that you cannot cure this issue with a smaller cam.
Every combo needs it's own tune. So if you replace the cam with a significantly smaller one, then you just have to start the tune all over. And the bottom line is at your compression ratio (was it 10/1?), there is not much room for a smaller cam. You are already running on the edge for pumpgas. My math works out to Scr10/1, Dcr8.1@163psi. You can go bigger,but smaller not so much. A 262*/110cam would put the ICA around 57*, and that would make 8.3Dcr@168psi, about as high as one might try with iron heads.
Edit
I went back to post#1, and saw 9.9Scr. That makes 8/1@159psi