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  1. 4

    Need help with parts list- converting TBi to old school carb

    So after giving myself a headache pouring over the wiring diagrams, I thought it would make sense to compare the Gi wiring diagram to the GL diagram. There's actually not many differences, and if worst comes to worst I think you could add in the wiring if necessary to make it work, although I...
  2. 4

    Need help with parts list- converting TBi to old school carb

    I like how you think- i'm very happy to be back in control of how my boat runs! I didn't like being at the mercy of outdated hardware/software! My low pressure pump runs at 10 psi and the edelbrock carb I got says not to go over 6.5.. So I have a regulator coming that should let be get my...
  3. 4

    Need help with parts list- converting TBi to old school carb

    Disregard my question about moving the distributor- found the bolt that loosens the base to allow the distributor to move
  4. 4

    Need help with parts list- converting TBi to old school carb

    I found this in another thread- I still don't understand how to adjust timing with this distributor since it doesn't appear to move at all.... Good News! Ok, for anyone who is contemplating this swap, the VP Gi engine has the Delco EST distributor like the Voyager sold in kits around the web. I...
  5. 4

    Need help with parts list- converting TBi to old school carb

    That's kind of what I was thinking.. then I could retain the oem filter and keep a nice clean factory look
  6. 4

    Need help with parts list- converting TBi to old school carb

    Also, is there any reason I couldn't use the factory low pressure pump I have and just install a pressure regulator to drop it down to 6 psi or so..?
  7. 4

    Need help with parts list- converting TBi to old school carb

    I'm not sure that the carb'd version uses the est.. let me see what I can find.
  8. 4

    Need help with parts list- converting TBi to old school carb

    Right now I'm trying to sort out how to make this distributor work- it doesn't appear that it can be adjusted to set timing like a typical carb distributor.. also working out the details of what fuel pump would be suitable..
  9. 4

    Need help with parts list- converting TBi to old school carb

    Once again thanks SO much for your help! Ok, so far I am following you. It's confusing to me how much will still be controlled with the engine harness after I swap to the carb. Will the ECM still be controlling anything at that point? Things like the trim, oil pressure gauge etc all are...
  10. 4

    Need help with parts list- converting TBi to old school carb

    And my engine has the vortec heads?
  11. 4

    Need help with parts list- converting TBi to old school carb

    Found it! How much HP you think would be gained with a new intake? Also, what would I need to do with my distributor to make it work since it currently gets some info from the ecm..?
  12. 4

    Need help with parts list- converting TBi to old school carb

    Hmm maybe I do have the spread bore after all.. so here is my next thought.. The price difference between the Holley 650 and the Edelbrock 1409 is somewhat substantial. It would almost be the same money to buy a new edelbrock intake and carb than just the holley alone.. are there any performance...
  13. 4

    Need help with parts list- converting TBi to old school carb

    Here are some pics
  14. 4

    Need help with parts list- converting TBi to old school carb

    1st off thank you SO much for the help, this is exactly what I am needing!! :) Ok- I have the 2nd ignition setup- the distributor with the square notch at the bottom. I think you said this one is the Delco EST.. I have the 2nd fuel system with both the low and high pressure pumps I believe I...
  15. 4

    5.0 Gipwtr Remove TBI and add Carburetor

    Sorry I know this is an older thread but hoping someone can expound on what was said here. I am converting a Gi back to carbureted and am hoping to reuse my distributor if possible. (This means that if you have a TBI GM based engine, and you want to swap to a carburetor, all you need to do is...
  16. 4

    Need help with parts list- converting TBi to old school carb

    Also wondering if after going to carb if I will need to time the engine..?
  17. 4

    Need help with parts list- converting TBi to old school carb

    Well after thinking about it, I decided to just go carb rather than chasing electrical gremlins.. so here we go! What stays plugged in from the engine harness?
  18. 4

    Need help with parts list- converting TBi to old school carb

    Hello everyone, and yes I have searched the threads (before I get flamed haha). I have an 01 Regal with the Volvo Penta 5.0 gi pefs TBI. It appears that my ECM is bad after having it diagnosed by Bob @ OBD.. There is one more company I am going to have check it out before I scrap the ECM...
  19. 4

    Volvo Penta 5.0 Gi PEFS problem- stumped!

    That's a great connection- I will have to give John a call! If John could repair it I'm sure Bob could program it.. I can't even find a used Mefi 3 anywhere right now anyway.. thanks for the help!
  20. 4

    Volvo Penta 5.0 Gi PEFS problem- stumped!

    Well I decided to send my ECM to Bob @ OBD diagnostics.. and its fried.. so now the search is on for a functioning MEFI 3 or I have to bite the bullet and order a new one 😳 or switch to a carb setup..
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