if you're serious and you want to get the most out of your modifications, a suggestion could be to take your intake manifold to Twisted Grimes machine shop in Alpharetta, GA (exit 12 400 north) and have Gary flow test your intake manifold before, then either have him port it or you port it, and get it flow tested again, to make sure most importantly that it's evenly distributed to each cylinder (so you're not leaning out one cylinder more than the others), and also to see how much of an improvement in flow it even was.
just my .02
gl man,
Dave =]