As for CIS this guy adapts it to ACVWs.
http://www.sandrail.com/millerfi/
But the CIS is impossible for a Beetle to fit as there is no room for the fuel distributor and airbox.
I am thinking of a Chevy FI system conversion on a Beetle, but that is just a thought and no research has been done.
CB Performance sells T1 DP intakes that are machined for those injectors which make it nice off the bat.