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Type: Posts; User: Fast355

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  1. 2* advanced is 2* advanced over whatever has been...

    2* advanced is 2* advanced over whatever has been programmed into the chip. The chip itself probably has additional advance over stock.

    My experience was exactly the opposite with an unheated o2...
  2. Simce the cam turns 1/2 speed of the crank, TDC...

    Simce the cam turns 1/2 speed of the crank, TDC is TDC regardless of which stroke you are on.
  3. Local junkyard would be my first pick. Look in a...

    Local junkyard would be my first pick. Look in a 1990+ 350 TBI 1500 truck.
  4. Definately has a reprogrammed prom chip in it. ...

    Definately has a reprogrammed prom chip in it. No telling what changes were made from stock. If you can get your hands on an OEM PROM, I would try running it first after double checking your base...
  5. Also there is always a chance the 7747 does not...

    Also there is always a chance the 7747 does not have a stock chip in it. Could have something from someone like TBI Chips that has ZERO clue what they are doing.
  6. The 92 G20 Van I had also did not have a 7747 in...

    The 92 G20 Van I had also did not have a 7747 in it. Had a 299' ECM in it. Almost every 92 I have run across truck/van/suburban/etc had a 299.
  7. Those are 61s.

    Those are 61s.
  8. These are Marine high pressure injectors. ...

    These are Marine high pressure injectors. Pink/Purple....Notice the rusty looking area on them. That is the factory stamping ID.

    http://i243.photobucket.com/albums/ff172/Fast355_album/6.jpg
  9. If they are factory injectors where the injector...

    If they are factory injectors where the injector connector clips there will be two painted strips. A 350 truck injector will be Orange/Black.

    The pic you posted is for the fuel meter body. Each...
  10. If they are factory injectors where the injector...

    If they are factory injectors where the injector connector clips there will be two painted strips. A 350 truck injector will be Orange/Black.
  11. If they are GM injectors the factory part number...

    If they are GM injectors the factory part number will be eteched into the top of them. Should be able to read the numbers without removing them.

    I know my old TBI in my 1983 G20 van passed with a...
  12. If the 02 sensor was cooling off the engine would...

    If the 02 sensor was cooling off the engine would run rich, not lean. I would check your base timing and make sure it is set for TDC or 0*BTDC. Also check the base fuel pressure the engine is...
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