Hi
I have a 340 that is 30 over 10.5 to 1 trw Pistons, 1.5 adjustable rockers x heads and 850 thermoquad, yes the carb is fine. Total timing 34 degrees coming in at 2800 rpm.
Has solid compression on all cylinders 190 to 200.
Plugs are tan.
3.23 gears 3200 stall
I have a Crane 150062 cam...