well I understand your concern But I put over 150k miles on a 14mm head, and I pulled GN trailers constantly, truck pulled, drag raced, and it was a DD for work and at the time I drove 110 miles round trip. All thats needed for a 14mm pump to live is a good supply of fuel, good filtering and a good lube additive (I used Marvels mystery oil and Power service as I use in all my trucks.). Theres alot of people giving these pumps bad names but to each thier own. But the other mods will do just fine. And please dont take my little rant about the 14mm pump wrong, I have heard the stories myself, but most guys throw it on there and expect a tight clearenced pump to run with air leaks and other problems, Just not in the cards with it, but if you take care of it, it will take care of you, it was by far the best mod I did to my old girl well a tie with the twins. I will never P pump another 1st gen. Thats what i did to my previous 1st gens in the quest for power.