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    Yes 1227429 ECM.

    Yes 1227429 ECM.
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    First let me say thank you for your help. I...

    First let me say thank you for your help. I recently installed a nice dash,which are really hard to find and I think there was a sticker on the ecm. I will check it as soon as possible.
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    This tbi is the type that comes on an 87 S10...

    This tbi is the type that comes on an 87 S10 blazer with a 2.8 engine,the engine has been replaced with a 3.4 crate engine (not a 4.3) and the tbi will be replaced by a larger but same type of tbi...
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    I want to tune a TBI.

    I want to tune a TBI.
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    I want to learn to tune !!!

    Hello to all, I want to learn to tune I have a clue but only a clue.Is there a sticky here a link you can give me that lays out the basics so I at least know what I reading....something like Tuning...
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    Where's the pic and write up ?

    Where's the pic and write up ?
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    Thanks,that makes things much clearer,gaining...

    Thanks,that makes things much clearer,gaining knowledge a post at a time !
  8. Thread: Pjg1173

    by Hard Driver
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    Sixshooter didn't get a pm,try again.

    Sixshooter didn't get a pm,try again.
  9. Thread: Pjg1173

    by Hard Driver
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    Pjg1173

    I may be interested in trading the 7427 V8 memcal for one from the 4.3 if you still have it.
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    OK,Thanks. It was suggested on another forum that...

    OK,Thanks. It was suggested on another forum that when using the 7427 to use for a 3.4 engine get one from a 4.3,another suggestion was get one from a 305 because the cyl bore size was closer to the...
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    In the interest of learning,why is it better to...

    In the interest of learning,why is it better to start with a 4.3 memcal vs the 5.7 when tuning for a 3.4 engine,does it make tuning easier ? Please explain in layman's terms if possible.
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    Anyone concur,will the memcals interchange and...

    Anyone concur,will the memcals interchange and what's the difference between the 7427 / 8625 ?
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    I'll have to research that, I have no idea,maybe...

    I'll have to research that, I have no idea,maybe some one will enlighten us.
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    Ok,it seems I jumped the gun by buying the 7427 /...

    Ok,it seems I jumped the gun by buying the 7427 / 5.7 engine,no problem I a can probably sell it and get my money back.Since I need the connectors I can get another but is the one from a 4.3 better ?...
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    OK,if the connectors are that easy to find I'll...

    OK,if the connectors are that easy to find I'll grab em next time at the yard.
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    So you are running the 8625,which appears to be...

    So you are running the 8625,which appears to be for a 4.3 and it allows you to tune correctly? I know from reading the the 7427 is the more "tuneable" ecm but I don't relish the idea of scrounging...
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    It appears that I may have to scrounge the...

    It appears that I may have to scrounge the connectors for the 7427 and rewire to fit,I thought that if the stock ecm could be tuned to handle the engine requirements it would simplify things .
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    What's Your Opinion

    My vehicle is an 87 S blazer[stock engine was 2.8]with a 3.4 crate engine,engine came with a mild 260 upgrade cam and I added a larger 4.3 tbi and freeflow catback.I had picked up a 7427 ecm but...
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    Thanks that's really handy,I confirmed that the...

    Thanks that's really handy,I confirmed that the 7427 is for a 5.7 engine but was surprised to find the 8062 was for a 2.8,I have stripped more than a few S10 in my day it gets confusing if you don't...
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    Well can I open the ecm and confrim which engine...

    Well can I open the ecm and confrim which engine it fits? Is it cheaper to buy the non tunable part without scrounging the wrecking yard or buy another ecm [$40] for a 4.3 engine?
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    For the above application should I have gotten a...

    For the above application should I have gotten a 7427 out of a vehicle with a specific size engine or does it matter ?
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    No problem if I use it I'll be more than happy to...

    No problem if I use it I'll be more than happy to donate.At this point I wouldn't know where to start.
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    Never mind,looks like Epadlite is working.

    Never mind,looks like Epadlite is working.
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    What program do I need to open these files ?

    What program do I need to open these files ?
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    I have a 87 S10 blazer with a 3.4 gm crate...

    I have a 87 S10 blazer with a 3.4 gm crate engine,auto and the stock [?] ecm. I have a few mods:4.3 tbi,freeflow exhaust[not hedders] and will add the caddy cold air intake.I assume I could pick up a...
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