allblowdup

Thought I posted this but I must have deleted it. I have a 4.070x4.125 (429 ci) mild ls3. Around 600 fwhp. The intake I have is the factory gm intake that comes with the ct525 engine. It has a csa of 1.76 at the port and a combined length of 4.75 on the runners. In my application I want to make as much power as I can at 5500 rpm. Is there another intake out there that is more suited to my application or should I cut mine in half and extend the runners some and open it up for a better csa for my engine.