This 347 stroker kit is compatible with Trick Flow heads. The one thing that you must be mindful of, is the size of the cam you want to run. If you were wanting to run the Trick-Flow Stage 1 camshaft, you will be just fine. Anything larger than that, you will run into a piston-to-valve clearance issue. In that case, you have to modify the the valve reliefs on the piston for additional clearance.
Just always remember, anytime you do anything involving heads and cams ALWAYS check your piston-to-valve clearance.