Need help jetting holley 4150's on a stock 4th generation 454. The 454 is in a early truck with a turbo 400 trans. Have 2 different holley 4150, 2 metering block vacuum secondary carbs. One is a 4118-s 725 cfm that I jetted 72/78 with 6.5 power valve. Second is a 3310-1 780 cfm jetted 72/80 with 8.5 power valve. Both carbs are re worked and run. Can not get jetting correct. 7118 runs lopey and has a dead spot off idle. 3310 runs rich and has a dead/rough running spot at 2000 rpm. I thought I was pretty good with holleys until now. Thanks for help.