Which DFI is best ?
Which is more user friendly.
Holley,Accel,Felpro?

 

I don't know anything about the other brands, but I have an Accel and I like it. I find it user friendly.

 

i have and like DFI but it isn't easy to learn to tune and you can find for relatively cheap nowadays

Fel-pro is much more user friendly with the wide band option...but is expensive

Holley is new and dont know much about it

 

The Haltech E6GM is pretty user friendly and uses graphical mapping vs. tables. Its easier for me to tune using these graphs vs. a table with a whole bunch of numbers. The Haltech is cheaper (~$650) uses your stock harness and sensors, and includes the software and cables. I had my car on the road in a day starting from scratch.

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1992 Camaro Z28; Engine:383 w/Ported Edelbrock RPM heads. Lunati Solid Roller Cam 224/232 .502/.502, Fluidampr, Comp Cams 1.5 Roller rockers and lifters, Comp Cams Triple Valvesprings, SVO 30 lb injectors. Holley/Walbro 255 lph in-tank pump, Haltech E6GM DFI, SLP 1 3/4" headers, 4" Mufflex, T56, SLP Clutch, Pro-5.0 Shifter, 4.10 Gear, Auburn Offroad Pro Posi. Super Ram. 17" X 9.5" Ronal FireHawk Rims w/ 275 40ZR17 Bridgestone RE 730's up front and Nitto Drag NT 555R's out back.

Double-Pump This! EFI Rules!