Pontiac Firebird 1967-2002 Birds of a feather flock together

MPFI question

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Old Jun 17, 2007 | 11:43 PM
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Default MPFI question

i have an 87 firebird with the 2.8L v6 mpfi engine on it and was thinking of switching it out for a chevy small block 350 but i wasnt sure how to go from fuel injected to carb. if i had to take anything out or put anything in and so on....
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Old Jun 18, 2007 | 12:27 AM
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The best idea would be to get the fuel sender and pump from a TBI car and then get a fuel pressure regulator to kick it down from the 14psi to the 5-7psi the carb runs.
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Old Jun 18, 2007 | 04:30 PM
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well i was replacing the entire engine. i am getting rid of the fuelinjected completly and was wondering more if i had to do anything with the computers and such or if its ok to go as it is.
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Old Jun 19, 2007 | 01:51 AM
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It all depends on if the speedo is sensor or cable driven I think.
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Old Jun 21, 2007 | 06:45 PM
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Default engine swap

i have an 87 firebird with a 2.8v6 mpfi engine and was going to swap it with a chevy 350 ho... can i just swap it or is there going to be a problem with the computers?
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Old Jun 21, 2007 | 06:57 PM
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You are going to probally need new K member, computer, trans, fuel system, cooling system. Its not as easy as it sounds....
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Old Jun 21, 2007 | 09:29 PM
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You'd be better off finding a V8 car to start with and throw your 350 in that....305 cars from the third-gen era can easily be changed over to 350 engines.
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Old Jun 21, 2007 | 09:52 PM
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i dont have a 350 yet i want to get one insted of the v6 that i have. and was wondering what i had to do to change it over from mpfi to carb.
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Old Jun 21, 2007 | 10:23 PM
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if youre going from multi port FI to a carb, you wont need a computer. its been done before, but it would be alot easier to find any kind of V8 3rd gen and put a 350 in it, regardless of the orginal motor. swap your parts over to the new donor car if you have to.
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Old Jun 22, 2007 | 02:19 AM
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*sniffle* My responses weren't good enough?

https://ls1tech.com/forums/showthread.php?t=733808
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Old Jun 22, 2007 | 06:05 AM
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Originally Posted by Formula350
*sniffle* My responses weren't good enough?

https://ls1tech.com/forums/showthread.php?t=733808
Thanks buddy. This is a duplicate post. I'm merging the threads.
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Old Jun 22, 2007 | 11:45 AM
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Originally Posted by y2k_ta
Thanks buddy. This is a duplicate post. I'm merging the threads.
yeah sorry about that...... and yes your imput was good enough but i aslo wanted more. thanks all
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