FRANCO-NISMO

Hello:
i have a question about CA18DET engine.
i have a CA18DE.
Now i´m rebuilding my CA18DET and making some upgrades like:
garret T03, MINE´S ECU, 550cc injectors, lightness flywheel...

But i want to port the head block, but i check the CA18DE head block and yhis head have the intake valves more big than CA18DET, and the air flow in the intake head is better, the cams from the CA18DE is little big than DET.
But the combustion camera on the head of the DE is little close than the DET.

So what do you think about make a Full head port to the CA18DE head block or port the DET head.?

i think if i gain more air flow with the head block from the DE, by the intake valve more big that increase the air inside the cylinder with the DE cams have a little more lift, i will gain more power....

thanks...