I have the e curve too. Works ok besides Chevy cap. Sits to high hit wiper motor. Have to change out cap and wires for clearance. Like the rev limiter and the curve select-ability. Give it a 6 out of 10.
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Welcome to the cast crank party! Had the same thing happen with cast eagle crank. Went molnar and no problems now. Gotta say that crank revved fast for the maybe 200 mi. Wouldn’t spend a dime on another cast eagle crank. Balancer won’t make a difference on them their junk! If someone wants to...
U could plug water ports put hoses on and pressurize it to 16pds with air. See if it leaks down. Spray plugs with soapy water if bubbles it’s leaking at plug. I’d probably go with when u washed it that is the cause as well.