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  • teamzr1
    teamzr1 replied to the thread Tuning an 86.
    IF the stock fuel injectors with the mods end up to be too small than they are max'd out Add weather, elevation, gas type of driving...
    • 22lbhr.jpg
    • InjFlow.jpg
  • C2 VET
    C2 VET replied to the thread Calling C5 Officiandos..
    Great info thanks, will check in the morning
  • C2 VET
    C2 VET reacted to teamzr1's post in the thread Calling C5 Officiandos. with Like Like.
    You mean the ambient light sensor ? If so, go to the BCM and check C1 connector and the pins I show and the colors of the 2 wires are...
  • Chuffer
    Chuffer reacted to Forrest Gump's post in the thread Engine issues - advice needed with Like Like.
    For my engine and using the first chart: 383 cu in, max revs 6000 equates to about 700 cfm on the chart. Then multiplied by the...
  • Steven Smith
    Steven Smith replied to the thread Tuning an 86.
    Thank you for your advice. I am at sea level, I use ethanol free fuel where possible but E5 at worst. My car has already had the cat...
  • Steven Smith
    Steven Smith reacted to teamzr1's post in the thread Tuning an 86 with Like Like.
    As to fuel injectors GM tended to go a bit too small and the C4s were not designed for E10 gas which runs even leaner so now is the time...
  • Invetterate
    Invetterate reacted to Forrest Gump's post in the thread Engine issues - advice needed with Like Like.
    For my engine and using the first chart: 383 cu in, max revs 6000 equates to about 700 cfm on the chart. Then multiplied by the...
  • teamzr1
    teamzr1 replied to the thread Tuning an 86.
    As to fuel injectors GM tended to go a bit too small and the C4s were not designed for E10 gas which runs even leaner so now is the time...
    • 27128to256K.jpg
  • Forrest Gump
    For my engine and using the first chart: 383 cu in, max revs 6000 equates to about 700 cfm on the chart. Then multiplied by the...
  • Forrest Gump
    Forrest Gump reacted to 62 C1's post in the thread Engine issues - advice needed with Like Like.
    https://documents.holley.com/techlibrary_selecting_a_carburetor.pdf This is the whole article and only two pages nut very useful - some...
  • Steven Smith
    Steven Smith replied to the thread Tuning an 86.
    Just so I order the correct parts which one of the 3 shown is correct?
    • Screenshot_2025-07-24-20-21-34-18_40deb401b9ffe8e1df2f1cc5ba480b12.jpg
  • Steven Smith
    Steven Smith replied to the thread Tuning an 86.
    I will source some EPROM's now as they are getting harder to find. I already have the cam and lifters...
  • teamzr1
    teamzr1 replied to the thread Calling C5 Officiandos..
    You mean the ambient light sensor ? If so, go to the BCM and check C1 connector and the pins I show and the colors of the 2 wires are...
    • Untitled-1.jpg
  • Steven Smith
    Steven Smith reacted to teamzr1's post in the thread Tuning an 86 with Like Like.
    GM stopped using EPROM's for Corvettes back in 1996 and also all other GM vehicles and electronics went to flash memory Also, harder as...
  • Invetterate
    Invetterate replied to the thread Calling C5 Officiandos..
    HI Frank, I have had my '99 for 22 years, it has coming up to 100k on it and I have only ever topped the oil up once between services...
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