kseries is ur easiest/most cost efficent bet. what does ur "mapped" out head consist of...

my friends old bseries made 25xwhp it was 85x89 13:1 ported head, buddy club stage 5s, smsp b20vtec header, square port head and skunk2 manifold.
my stock k20a2 ips cams, rbc manifold, dtr header and kpro made 250whp ...K is alot better platform to start with.