I painfully struggled with the aluminum blocks that Paul designed for the P-port tubes. Buying the drill bit for the top, the fuel log rail, drilling them to match, then trying to get them to mate / lock down without spilling fuel everywhere. (Plus the welders hourly rate). Spent easily over $600 :(

My next intake will definitely use something like billet speed. Let me know how it goes. 

I know nothing about this, but do you want the injectors at the start of the intake runners, to give it a long time to mix with the air? Since we aren't looking for quick acceleration (injectors closer to combustion) and more long term cruising MPG benefits.