.105 main jets are larger then the dump tubes, so you are already over on jet size. .086 is a good combo, with a red Holley, and a bypass, not a regulator, set at 3/4 gal per minute, floats at 3/16 from the top of the bowl. 13.2 v at no load isn't a test, it's a sample, hook your VOM between the battery ground, and the pump grd, and see what you have, anything below 9.5v and everything starts to retire, especially with a Dyna. The 3/16 number is done by setting the floats, till you get that much fuel in the bowls, by running the pump, and removing the bowls, that's real close to running over, but you need it. Bob!