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post #1 of 7 (permalink) Old 05-13-04, 12:12 AM Thread Starter
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EFI vs carb

i have a 250 xf motor with EFI i also have a redline with 350 holly, what would go harder
i have 2" wildcat ex' 2.5" sos exhaust system sport sos.
I also have a 4 speed single rail manual and 3 speed auto
what would be better can anyone help?
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post #2 of 7 (permalink) Old 07-27-04, 09:32 AM
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Re: EFI vs carb

the EFI
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post #3 of 7 (permalink) Old 07-27-04, 04:49 PM
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Re: EFI vs carb



4L I6, naturally aspirated producing 173.5rwkw.
14.410 @ 96.49mph with street radials.
What's that?..... Did I hear you say TQE power?
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post #4 of 7 (permalink) Old 07-28-04, 01:54 AM
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Re: EFI vs carb

i have had 3 carby xf 3 speeds and i changed them al to a 4 speed borg warner box and they have at least 25% more power with a manual on them but as for efi this is my first one i have owned (current one i have) the efi has more power on tap especially after 2250 RPM they get a power boost.

i am changing it to a T50D box which is the 5 speed manual.

the carby auto got 76 RWHP with 2 inch sports exhaust
the carby manual got 97 RWHP with 2 inch sports exhaust
the efi auto got 91 RWHP @3900 RPM
(these are all stock cars )

so if that helps in your decisions on what to do. good luck.
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post #5 of 7 (permalink) Old 07-28-04, 09:25 PM
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Re: EFI vs carb

I'd go for EFI too.

I remember reading somewhere, either a website or magazine, where the EFI 250 matched the last of the 302s in power, and came pretty close with torque. God-damn I hate their standard engine/exhaust note though, oink oink.


'91 EB Fairmont Ghia V8.
Pacemaker PH4000 extractors
Meaty semi-twin system
AUII XR8 t/b & maf, ELGT snorkel
BA semi-manual shifter conversion
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Explorer intake manifold
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post #6 of 7 (permalink) Old 07-29-04, 05:31 AM
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Re: EFI vs carb


We live in an imperfect world, but
there is no point in trying to make it perfect, because not everyone can be GREEK!

XE Fairmont Ghia... Silver/Grey Met over black, soon to be v8, cant wait till i get another v8, after 3 LONG HARD YEARS

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post #7 of 7 (permalink) Old 08-01-04, 04:57 PM
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Re: EFI vs carb

EFI - more HP and bags more torque too.

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