You could buy the top end kit with either the track or street heat setups. SHOULD have 170cc Twedge heads. Honestly I'd pull that intake off, sell it and throw a tmoss ported Cobra onto it. More low end and it will flow 250cfm just like those heads.
2000 Mustang GT Steeda build #48. Bolt ons, suspension, Novi 2000.
Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.