OK bought an HDI electronic boost controller. Wanting to install and get the boost turned up. Where are most people putting there controllers? I have the wideband on the steering column and the Boost Gauge on the pillar. Trying not to put to much on the pillar. Would like to beable to access somewhat easy. Recomendations for placement?

Also recommendations for routing vacuum line through fire wall? and where to get a good constant + connection from other than radio?