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  C90X 9424B yes or no?

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Author Topic:   C90X 9424B yes or no?
mustangboy
Gearhead

Posts: 652
From: Ont, Canada
Registered: Mar 2002

posted 11-28-2002 06:39 PM     Click Here to See the Profile for mustangboy     Edit/Delete Message   Reply w/Quote
I posted my original question in the classics by mistake but I really wanted it here.This is the hi-rise dual plane like the one used on the 289 shelby's.Will this work ok on an otherwise stock 66 289 2 barrel motor,dual exhaust,4 speed,3.20 gears.I'm not looking for a huge improvement ,its more for looks than anything, but I have read this is more of a mid to high rpm manifold and I don't want to kill mileage and bottom end.Opinions please yes or no.

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Moneymaker
Administrator

Posts: 19704
From: Lyons, IL, USA
Registered: May 99

posted 11-28-2002 11:08 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Best 180 degree SBF intake ever made!
No brag, just fact!

------------------
Alex Denysenko
Co-Administrator and Moderator

NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Professional Manwhore
The Barry of BarrysGrrl

Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"

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Gearhead
Gearhead

Posts: 2164
From: Vancouver Island, Great Wet North
Registered: Mar 2000

posted 11-29-2002 12:12 PM     Click Here to See the Profile for Gearhead   Click Here to Email Gearhead     Edit/Delete Message   Reply w/Quote
I've been running one of those on my mild 302 since last May, and it is fantastic!! You won't be disappointed.

I'm just in the process of switching over to a Performer 289, as the C90X was borrowed from a friend, and he wouldn't be too happy if i sold it with the car. I'll be testing to see how the Performer works this weekend, but I expect to see abit of a drop in power, especially in the 5000-6000 rpm range.

------------------
Cheers,
Ian
M&M Member #395
-------------------
'79 Mustang Indy 500 Pace Car
Ian's Pace Car Website
Vancouver Island Mustang Association Website
Indy Pace Car Registry of Mustangs Official Website

"A friend will bail you out of jail after you do something stupid... a real friend will be sitting beside you saying 'That was SO COOL!!'".

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mustangboy
Gearhead

Posts: 652
From: Ont, Canada
Registered: Mar 2002

posted 11-29-2002 01:26 PM     Click Here to See the Profile for mustangboy     Edit/Delete Message   Reply w/Quote
Carb recommendations?Remember this isn't a race car,looking more for driveability and mileage.Engine is otherwise totally stock.I was thinking of a 600 Holley but appreciate any recommendations.

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Gearhead
Gearhead

Posts: 2164
From: Vancouver Island, Great Wet North
Registered: Mar 2000

posted 11-29-2002 03:07 PM     Click Here to See the Profile for Gearhead   Click Here to Email Gearhead     Edit/Delete Message   Reply w/Quote
That's what I'm running on my engine (Holley 600 VS). Here's my combo:

1979 302, bored 0.040" over
flat top pistons with small valve reliefs
stock 1979 smogger heads, decked with stock sized valve and minor bowl work
stock crank and rods
dual roller timing chain
CompCams XE262H cam (.493/.500 lift, 218/224 duration on a 110 degree lobe separation)
C90X intake (now being replaced with a Performer 289)
Holley 600 VS carb, 68 jets in front, 72 in back with a 6.5 power valve

I run a T-5 manual tranny with 3.73 gears. The car is VERY responsive and pulls great. Gas mileage is surprisingly good, when I can keep my fott out of it. You should be able to tune the 600 to work very well with the stock bottom end and the C90X manifold.

------------------
Cheers,
Ian
M&M Member #395
-------------------
'79 Mustang Indy 500 Pace Car
Ian's Pace Car Website
Vancouver Island Mustang Association Website
Indy Pace Car Registry of Mustangs Official Website

"A friend will bail you out of jail after you do something stupid... a real friend will be sitting beside you saying 'That was SO COOL!!'".

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Moneymaker
Administrator

Posts: 19704
From: Lyons, IL, USA
Registered: May 99

posted 11-29-2002 06:35 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Either a 4150 600-700 CFM Holley or a 1.12 Autolite will work best on a stret car.

------------------
Alex Denysenko
Co-Administrator and Moderator

NHRA/IHRA/SRA member and licensed Superstock driver
MCA member# 53321
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Professional Manwhore
The Barry of BarrysGrrl

Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"

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