whinning trans and no acceleration

[jaxrx7]

sooooo im new here just bought my 7 on sunday im having some issues with her the biggest is no acceleration when i bury the pedal however it has gotten noticably better i have wired open the 5th and 6th ports since i have 0 back pressure, replaced plugs and wires and cleaned the tps what else can i do i have been told to put seafoam in it but have also been told that it can mess up the apex seals whats the truth.....? the previous owner installed a stage two clutch and bled it and all however there is a whinning noise when driving in the trans should i be worried or is it normal i really dont want to burn thru a clutch right after buying it...... thats about it for now my sas dosnt work but i dont think its connected and i have no electric to radio checked fuses guessing its a bad ground.... o also i need a wiper switch and cant find one i can afford and there isnt one 7 in salvage yard till tampa im not driving 5 hours for a switch lol and autozone wants 1100 if any one has an extra please let me know