Hi all first post here and looking for a answer to a question
Im in the middle of building a 5.3 turbo 1969 nova and got a deal on a turbo and computer set from a friend
he said the ecu is programmed for a 54 tooth wheel. looking at the computer and harness for install i noticed that the ecu plugs are color coded for a 24 tooth wheel
I currently have a 24 tooth motor in my nova now so I swapped the ecu out and it started and idled
although not happy it hunted for idle speed a little and when i cracked the throttle a little it popped in the intake a bit, im figuring its because of stock injectors and no turbo at the moment

it runs just fine with my ecu in it holds idle no problem and dosent pop at all