i've got a '95 f-150 with a 5.8 in it, no emissions needed on her anymore, so i would like to get rid of the egrvalve. its got about 220,000 miles on it so getting rid of the egr & cleaning out the plentum is on my agenda. how & where do i get the stuff to satisfy the computer so it won't throw egr codes, adjust timing & mess up other things like no. 8 cylinder ?

also hows the HP & mpg affected ?
also would like to do the same on my '84 plow truck with the straght 6. thanks in advance to any help or added info