needhelp im lost

hi guys im trying to get my dart running, the setup is a 340 that has just been rebuilt 10.1 compression and a comp cam extreme engery cam http://www.summitracing.com/parts/cca-cl20-223-3/overview/make/dodge running 26 degrees of timing with mopar performance dizzy recurve kit,converted to hei four pin, and a offenhauser tunnel ram with the ir adapters so it splits the motor in half basically and two 450 holley tunnel ram carbs, i think i have 28 for main jets on both one turn out on the idle mixture on both and did check to see if power valves were blown and they were good could not find what size power valves are my problem is that i have the rear half of the motor fluding out the plugs are wet comparied to the front two on both sides i trying everything and nothing seems to work i turn the idle mixture screws all the way in and does not change anything im lost, if someone could help that would be great im almost ready to go with a single carb setup but would like to get this setup working if i can helppppp!