You should be fine. I use the Super Poly at work and we have encountered zero issues with plastisol color overprints. But we also cure through a gas dryer no higher than 330 degrees.
The main concern is this: If the poly ink contains peroxides there are some things to consider. When peroxides are activated curing cure, they can destroy certain pigments. Most notably blues and reds. So when testing, always look for possible color shift.
You also want to make sure you keep the temp low and the speed slow. This will help to keep the blowing agent under control and minimize/eliminate possible fisheye effects from the chemical reactions taking pace in the ink during cure.