Hi Andrewb70, the vette controller will work with the holley dominator as I am doing the same thing :-)
I haven't finished putting it all together but I did test it before going through all the work and it worked great! Just remember to turn the ignition off and resync it after changes otherwise it didn't accept.
I did find that the c5 vette controller terminals are the same size as maxi fuse terminals so that's what I used and just put hest shrink on the ends.
Thanks for the help here guys I really like this setup
