Anyone tried upgrading a TBI engine to EFI?

[bonnieclyde100]

Originally Posted by Mackman

Hello, I am new to this site. I am hoping to gain some knowledge from others that may have achieved upgrading their TBI engine to one of the new EFI systems such as the Holley Terminator, FiTech, FAST or E-Street 2? I am thinking that this would be an improved system over the factory GM TBI. I am confused on how the transmission would react to these systems or if a transmission controller would have to be utilized. Any info would be appriciated.

What year is your truck ? if it is an obd1 setup there is a lot you can do with that system to increase it. there is a forum http://www.gearhead-efi.com/Fuel-Injection/forum.php that you can learn how to modify it fairly easy. I even took 2 throttle bodies and attached them together to make 1 four barrel tbi and my computer with some tuning runs it. its in a 69 chevy truck the titles on forum is frankenbody . I didn't come up with the name others did the same thing first. here is a link to a video of my truck. https://www.youtube.com/watch?v=PbOHadlT-jM