I have gotten a D-tech and a DS4 from them and have been pleased. I recommend them. Good prices, good service, no problems with the parts. Your mileage may vary.
84 C10 J code intake.
83 C10 Scottsdale w/veggie conversion.
98 K3500 Silverado CC DRW, marine injectors, 4" exhaust (kitty cat MIA), boost and egt gauges, FSD relocated, #9 resistor thingy, reman Navistar block from Kennedy installed Jan 08, Reese Signature Series Gooseneck hitch.
95 C2500 F code. Rebuilt GEP. Daily driver since Jan 2014.