I currently have about 25,000 miles on my giles pump and I love it, I need to advance teh timing a little because the TDI I only have it set at 1.00 mm for those 25,000 miles but I have been averaging about 44 mpg, I have towed a lot of things that I shouldnt have like fully loaded enclosed 5x8 uhaul trailer and caddy bed full of all my possetions from Tucson AZ to Carson City MI and only had to downshift from 5th to 4th 3 or 4 times in the hills of new mexico, drove the whole way with 15 psi of boost and averaged 25 mpg, I have hauled 1300 lbs of steel back to the scrap yard just two weeks ago without a problem, with a 1.6 long block and transmission in the bed along with my cherry picker my brothers 01 sierra with a 5.3 cannot get around me from a dead stop until 80 mph (my 5th gear doesnt work right now otherwise he cant touch me)
the only thing that I dont like about this power is I bent the shift fork for 1st gear and now it wont go into 1st and something is messed up and wont stay in 5th gear, even with just 4th I still get 44 mpg with the Giles pump, I have it limited to about 14 psi of boost right now which I feel bad about since Giles said this pump is good to 40 psi.
later
jkeiffer