Testing fuel system

lol no 600 HP monster here, more like 300-325... Magnum heads (w/ 1.6 rockers), KB-107 pistons for 10.5:1 static comp, Lunati Voodoo 60401 cam, Air-Gap intake, Hedman shorty headers, and 625 cfm Carter carb. Fuel system is same from stock 318 2-bbl. setup (lines, pump, etc.).

I'm pretty sure it's running out of fuel because if I keep it floored for more than a few seconds at higher RPM it will suddenly bog/cut out at times; if I let off for a bit and get back on it it's fine. And aside from this issue it runs great in all other conditions. I'm willing to bet the tank pickup is getting clogged but I want to test it first before I go pulling stuff apart.