I’ve got a 416 LT with 2.9 Whipple and using Holley Terminator X for engine management
The problem is the motor will not run properly after 5800 rpm
Running AN 8 fuel line
2 340 pumps in the gas tank
LT4 injectors
LT 4 high pressure pump
NGK LTR71X-11 plugs
23 gap
It’s making 8 pounds of boost at 5600 rpm and then it starts breaking up !