One thing I haven't see addressed is what your water to antifreeze mixture is. The more water (Distilled water is the best) the more heat can be pulled. Because I have no desire to keep mine swapped from summer to winter I run 60/40 water to antifreeze or I would run 100% DI water in the summer. If you are in a tropic climate and aren't I suggest running pure distilled water or 90/10. Even if you find other issues this is something to consider.
Double check to make sure someone didn't kink the hoses on the intercooler system if you did not do the install yourself. If you did, double check it anyway. Also make sure nothing has gotten blocked in front of the H.E. like paper or other trash that could block airflow.
"Pump seems good" doesn't eliminate it from the equation. Pull the pump and do a flow test on it. Get a bucket of water and fill it with a gallon or two gallons of water. Time how long the pump takes to empty it. Then do the math. If you are not aware of the flow rate on the pump call Edelbrock and find out. The 411 on the pump should be on the 'boiler plate' (pump plate for the paper pushers) on the pump assembly.
If you have increased the boost on the setup from the stock config, it may be that you are over working the HE and need to upgrade to resolve the issue. A higher volume pump could also help with the existing system.
I love my triple pass dual 11" fan H.E. Does a great job. Good luck.