Hard Idle And Sputter

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Hey all i have a small problem with my det redtop i know its command,this all started when i checked my plugs out about a week ago,before i was using iridiums BKR5E1x-11 and now im running bcpr6es-11 havent been gaped plug and play, and now im having an issues when revving also driving it sounds like i have a mis and sputters, hard idle soundin like theres a big cam ive checked for vac leaks and now im down to checking for a bad sensor, i have a multimeter as well to check ive heard you can check for tps and a for more sensors near the intake manifold any suggestions correct me if im wrong thanks