It's a fresh motor (8.5 to 1 , rebore and new rings) and is showing about 130psi with a compression test.
Has twin Edelbrock 1405 Carbs, floats set and all stock jets. Hit the throttle and the main jets are squirting fine.
MSD 6 which tests out ok (bridge the trigger wires with coil lead earthed)
Cylinder 1 is set at TDC on compression stroke with the rotor arm pointing at cylinder 1. rotor spins anti clockwise with correct firing order for 351w.
When cranking it doesn't want to fire. With easy start it'll fire once and die. I've tried cranking and rotating the distributor either way, still nothing.
Pulled the plugs, they look okay, not wet. Tried hitting the throttle several times to add more fuel, still no good. I have a 2" spacer onto the intake, a 6-71 blower with a 2" carb spacer.
I'm confused, it has spark, ignition, the carbs are priming and squirting fuel but doesn't want to start? I've unbolted the carbs and raised them to make sure they aren't leaking fuel, they look fine.
Any advice would be great, thanks in advance.