[Gaz64]

Allen,

Sounds more like the carbs are running out of fuel.

The 44 IDF comes with a 36mm choke, F11, 135 main, 175 air from factory, you say yours has 37mm choke?

Do you have a fuel pressure gauge at the carbs?

What size needle and seats?

What fuel pump?

What size fuel lines?

I ran 44s on my Blue car in my avatar, 308 cid, 38 choke, F2 e-tube, 150 main, 180 air, 2.00 needle and seat.