jakepeewee
Yes, this g-inlet cam does exist (SP5 and SPS).
I got a set of G-inlet cams from a 916SP. The horizontal cam originally doesn't come with the extension for driving the tacho meter, but I had the extension added so it would suit my SP3.
Right now I am installing 748R heads and cams, so I am willing to sell the g-inlet cams. If interested please PM me.
Regards,
Jacco