I see you have the G3X. Do not get the (intake) manifold pressure kit from Vans. You will need a custom hose from the #3 intake port (R/S) back over to the sensor block on the left side of the firewall. You will need the straight orificed fitting for the head (45 would be better but won't screw on.) and a 45 deg fitting on the sensor block. I am getting mine from TS Flightlines.

I don't know what else you will need, but this is for sure.

Good Luck. I can send pictures if you need them.
 
I see you have the G3X. Do not get the (intake) manifold pressure kit from Vans. You will need a custom hose from the #3 intake port (R/S) back over to the sensor block on the left side of the firewall. You will need the straight orificed fitting for the head (45 would be better but won't screw on.) and a 45 deg fitting on the sensor block. I am getting mine from TS Flightlines.

I don't know what else you will need, but this is for sure.

Good Luck. I can send pictures if you need them.

Thanks for advise