so mr bg tech, can you explain to me why i sent 3 bg 400's to you in a matter of 3 months, the 1st on came off my dragster because it was pouring gas out the bottom, bought a brand new one, tag said bypass pressure set at 21 pounds, installed with a new gauge, pump wouldnt put out but 3 pounds, even went as far as to adjust the bypass wide open, and only got 6 pounds. so off it came and was sent in the same day it was bought. bought another new one, pressure bounced back and forth. only took 3 weeks to get 1st one back, 2nd one you had for 3 months claiming you ran out of parts. have also went through 3 of your 2 port regulators this year on a customers car. on the other hand i have had a race demon and a king demon that i never touched other than setting the idle. i can say though that after switching to magnafuel i havent had a problem in 3 years. so before you start giving me your reply consider i am a customer who uses some parts just not your fuel pumps and regulators.