1. yes 2.yes 3 . 0.035 to0.045 4 .650 would be nice but try it .holley do not like dirt it may some junk in it like in the air bleeds. if it has a power valve it my be bad and will make it hard to start run rich if it out, it will let the fuel out of the bowl check the needles and seats . the floats .look at fuel psi 7.5 will work and time it with a light .what size spring did you put in the dist?