Is DFI really advantageous to using the stock computer with a custom chip to match the application? I'm building a 385 cu. in. motor, but I'm not sure if I'll have enough to get the SR intake right away, so I may leave the LTR setup until funds allow SR. If this is the case, I'm going to have to get the chip done once, then again when the SR gets on there. I am considering burning the chip myself, but if I have the time to do that will be the determining factor. My other idea is that if I have the $$ for the SR, maybe I should wait on that and get DFI first, then add the SR later. What are your thoughts on this? What exactly do you need for DFI and does everything come in the kit (like you see in Jeg's) or is there extra stuff needed also? The car is a '90 (obviously) so it currently uses Speed Density.

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'89 Camaro RS 6cyl. auto, don't know how much longer I'll have it.
'90 Iroc TPI 305, 5 spd B&M Ripper shifter, hopefully I can rob a bank or something and get more
www.geocities.com/irocnroll90

 

Being a DFI user (and having argued this with Grumpy before) I would say stick with the stock computer unless you have your heart set on DFI. The stock computer should easily support your setup and overall will be cheaper to modify because you already have the computer. If you decide to go with the DFI, all you will need is the computer and software, and a harness/adapter if you don't want to re-pin the existing harness. You can re-use all your existing sensors (except the knock sensor). Although I would consider putting in a Walbro 255lph pump to replace the stock pump.