Monte,
I have been running the Lucas (POD) injectors for over five years in my 89 D250. They were originally purchased in 03/01 from (Big Don) Peters, as what was originally referred to as the "Ol' Blue specials". I recently removed them from my 89, pulled the 9mm adaptor sleeves, and I'm now running them in my 93. When I mash the go pedal in in 5th gear, I'm pegging the boost guage at 30psi. (I would only see about 24psi of boost in the 89. ) They will smoke like hell when you floor it, but if you are easy on the throttle, they are not too offensive. I always love it when I get a tailgator on the highway. Just mash the pedal for for about three seconds, and they will back off really quick in a cloud of black soot! I will say that these injectors are about the best performance upgrade for the money.