Has anyone put a 428 Cobra Jet carb (735 cfm) and 428 Cobra Jet heads on a 427 GTE? I saw that with just those bolt on swaps, the engine dynos at 414 HP with headers. The stock HP rating was 390. The Cobra Jet heads also allow for the improved Cobra Jet exhaust. But, I wonder if the Cobra Jet heads work with the PI intake manifold with no modifications?