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  1. fmt2bx

    1996 VP 5.7L TBI Base timing value.

    Thank you
  2. fmt2bx

    1996 VP 5.7L TBI Base timing value.

    Hi, I need to check my base timing on my 5.7L TBI - ECM 1 - Delco EST ignition system (distributor and coil). - I have a scan tool to plug into Data Link to get base timing mode. The question I have is : From the base timing procedure, it says, go to 1000 RPM, select base timing mode and adjust...
  3. fmt2bx

    GM350 TBI hesitates when accelerating fast...

    Thank you.
  4. fmt2bx

    GM350 TBI hesitates when accelerating fast...

    I did a bit more troubleshooting yesterday. weather isn't cooperating and it's only going to get worse from now on. I just wanted to re check a few things. - Compression on all 8 cylinders around 130 psi - The motor is equipped with a MEFI 1 ECM. I used the manual to check the timing and I need...
  5. fmt2bx

    GM350 TBI hesitates when accelerating fast...

    oh Boy!!!!!! Good point. I ll have to look in my rebuilt kit, see if I replaced the old spring.. Geez, that would be unfortunate if I did replaced it and threw it away. :-/ *******Edited to say that the spring wasn't replaced, it wasn't part of the rebuilt kit. So the old spring still in...
  6. fmt2bx

    GM350 TBI hesitates when accelerating fast...

    Thanks. Yeah I have had good luck with Summit Racing. Of course our host is another good place.
  7. fmt2bx

    GM350 TBI hesitates when accelerating fast...

    Ah. Thanks Where would you get it from?
  8. fmt2bx

    GM350 TBI hesitates when accelerating fast...

    Actually here it is: https://www.amazon.com/dp/B07TC43V4T/ref=cm_sw_r_sms_api_i_NzkOFb2702Y6R
  9. fmt2bx

    GM350 TBI hesitates when accelerating fast...

    ChrisCraftFan, Can’t remember but i ll look it up tomorrow and will post back here.
  10. fmt2bx

    GM350 TBI hesitates when accelerating fast...

    Ok thanks. I will look for the part #. I replaced the MAP sensor, no luck. I am going to do another compression check and start over.. Today I kept the fuel pressure gauge connected while drive testing, the 11 PSI is steady, never drops even when engine is acting up. Also, if throttle...
  11. fmt2bx

    GM350 TBI hesitates when accelerating fast...

    First I would like to thank you all for all your help. This motor was rebuilt in 2003 by Quicksilver and this is the only info I can find on the motor (see pic). It isn't the ideal situation where I could tell you what year and SN this motor is. Bottom line is, it looks like at some point the...
  12. fmt2bx

    GM350 TBI hesitates when accelerating fast...

    Thank you very much.
  13. fmt2bx

    GM350 TBI hesitates when accelerating fast...

    Definitively not enough pressure, if this is where I am suppose to check it... I was trying to get some specs on the TBI injectors and the fuel diagram of our host doesn't show a part # for the 2 injectors??? Anybody knows what those injectors should be? I want to verify that I have the...
  14. fmt2bx

    GM350 TBI hesitates when accelerating fast...

    Hi. Thank you for the replies. Went this morning and got only 6PSI at VST and 11PSI at the fuel line( see pix). I guess it’s way too low..
  15. fmt2bx

    GM350 TBI hesitates when accelerating fast...

    Going to check today. Will report results. thanks
  16. fmt2bx

    GM350 TBI hesitates when accelerating fast...

    Gm350 TBI engine. Idles fine, if I apply throttle gently, no issues. However if I try to do a hole shot, motor hesitates, misfires or backfires (can't tell) then accelerates normally. Also while at 4400 Rpm if I go to neutral rapidly, no misfire or backfire. Works fine. The only issue is Hole...
  17. fmt2bx

    VST question for 5.7L TBI....

    I couldn’t get the top off. I was afraid to damage something and this part being unavailable, that would have been too costly . All dodge, thanks for your help too.
  18. fmt2bx

    VST question for 5.7L TBI....

    Glad you could find a new one! 👍🏼 Thanks DypCdiver for your help.
  19. fmt2bx

    VST question for 5.7L TBI....

    GOT IT!!!!! I wanted to post the following in case it might help someone down the road... This type of VST has been discontinued by Volvo, I imagine there might be some work around it but if the VST is plugged up , this might be a way the avoid very $$$ substitute. I got the VST out, it was...
  20. fmt2bx

    VST question for 5.7L TBI....

    Disregard my last 2 post.. Got the VST out and here is the issue..... Totslly clogged up...Now going to try to take this apart and see what i can do... Are you aware of any videos or post about taking this apart? Thanks
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