Looks perfectly normal.
Do you have a gate valve on the pump?

You state water temps are all over the place. What are you seeing?

With just a gate valve adjusted, mines at 130-140°F at cruise. Slightly higher in the no wake zone, maybe 150°F
This is thru logs and snails too.

This is a single pass system, lake temps affect engine temp too.
Black Canyon/Boulder Canyon, below Hoover Dam, is 55°F year round. Mohave gets to the high 80s. The river at Bullhead is consistently 65°.
T°-in/T°-out ~50/60°

Dan'l

Do I have a fuel pump issue based on videos? At idle fuel pressure fluctuates a lots, then under higher rpm maxes a little below 6psi. Mechanical Ford 460 fuel pump, diaphragm looks fine. Brand new lines, tank, water separator before pump, new in line filter between pump and carb. Brand new carb.

I am able to hit 4900rpm but after holding near that for about 20 seconds I hear a pop/probably ping and I back off. I think it starts to starve for fuel. Do I have a fuel pump issue or something else?

I am running 10 degrees at idle, 30 degrees all in at 3000rpm. Conservative for now.

New distributor, wires, plugs. Quick fuel 600 cfm marine carb new. Hardin marine 460.

Carb Specs:
High Speed Air Bleed 28
Idle Air Bleed Size 73;39
Marine Engine Size Universal
Marine Use Yes
Material Aluminum
Model 4160
Primary Main Jet 67
Primary Power Valve 65
Primary Pump Nozzle Size 35
Product Type Quick Fuel Marine Carburetor
Secondaries Vacuum
Secondary Main Jet 76
Supercharged Application No
Throttle Bore 1-9/16 inch