I am about to install a Precision Airmotive Silverhawk vertical draft FI on a 0360 Lycoming on an RV7. My project came with MA 4-5 carburetor and I have already prepared the firewall penetrations for that carburetor. I would like to be able to use the penetration points if possible. I have read post about the standard clockwise mixture control (control arm points down) requiring modification to FAB. I cannot find any post relating to the alternate Counter clockwise version ( arm points up). Any help with info on the alternate (up arm) would be appreciated. Actually I would love to hear about either installation. If down arm, how you solved the interference with FAB, and how you like the Silverhawk system, any problems with the Silverhawk. Thanks.