Headwork usually runs $750 to $1000 or so. Valvesprings are like 120, retainers are 80, cams are 700, cam gears are 200 Hondata is 245, dyno time is like 100 an hour... It adds up.

Figure like $2300 on top of all that other stuff for the ITB's plus you need a completely new ECU to control the crap because it does away with the MAP sensor. The individual runners don't create a steady enough vacuum to get a MAP reading. In theory you could rig up an equalization chamber with a hose running from the vacuum nipple on each runner and then one hose running from the chamber to the MAP. But basically to get it to work right you need an ECU that can make fuel maps based on TPS and RPM. The cheapest ECU I know of that will do that is the AEM EMS which runs around $1300. No, it ain't cheap.