I run Edelbrock's Pro-Flo on my 383 SBC. After learning to control my SD (#727/730) TPI system, I was very unhappy with the limited abilities of the Pro-Flo system. No datalogging and no WBO2 control. After doing much research and pricing my options, I opted for the C950 system. It is less than $1000 from Summit. And I did have to invest in a small cap HEI distributor, remote mount coil, a new stepper style IAC and two plugs. The distributor and IAC are both good improvements anyway. I also upgraded my injectors to Ford SVO #30 units, set at 57 psi.

Rather than reproduce my journey, I will post a link to another forum where it has been discussed in detail. The EFI forum at www.chevytalk.org is a good board for the Holley system and the moderator is Doug Flynn from Holley's EFI department.

http://www.chevytalk.org/threads/sho...page=0#1160021

Edit: Add Updated "Fuel & Ignition" page for my car website: http://www.edgesz28.com/edgesZ28/fuel.htm

Ed www.edgesz28.com