i don't know how to interpret this statement.When you steer the elcamino tilts.
I need more info. When you say the car tilts do you mean it leans? Like one side is higher than the other? Which side does it tilt towards?
Or does the steering wheel tilt?
Does the car go straight down the road or does it pull/drift to one side? If it does this, are you accounting for road crown?
Who did your alignment? I would take it back to them, these are issues that a front end specialist could answer after placing it on the alignment machine and analyzing the readings.