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Author
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Topic: What jetting to use on a Victor JR. for a 289 ?
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Helping Hands
Journeyman Posts: 33
From: Salem,OR
Registered: Jul 2003
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posted 07-16-2003 01:52 PM
  
This is the first time the motor has been fired with this manifold.The carb is a 750DP list 4779. It was blueprinted by BG years ago and was called their 4779S. It has rear idle adjustment and powervalve.It has 11.4 comp,Mild head porting (289HI-PO casting) 194/150 valves,Comp Cams Solid 250/260 .050 106ls What stagger should I put in.I read a little and found that Moneymaker doesn't recomend a square qetting,so where do I start???
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Helping Hands
Journeyman Posts: 33
From: Salem,OR
Registered: Jul 2003
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posted 07-16-2003 03:46 PM
OOP'S, I gave the wrong compression. It's 12:1.The headers are 1 5/8. Timing is 28 initial, 34 total. The engine has about 3-3.5 inch vacuume in gear. A bit more on the carb.It's a loaner, so drilling restrictions is out of the question. The jets that came in it from BG were Primary 72 with PV
Secondary 82 no powervalve. Converter is a new (untested) and has an "advertised" flash speed of 4000. gears are 4.88 with a 26 inch slick.
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bluestreek
Gearhead Posts: 1289
From: Athens,GA
Registered: Jul 2001
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posted 07-16-2003 07:01 PM
When I ran stock 750 DP a few years ago on a 289, I used 72 in the front with a 3.5 PV and pink pump cam . In the rear I ran 79 jets and a blue pump cam. Squirters were both 31. Timingwas locked out at 36 degrees. Every motor is different so you may need a baseline run before guessing which way to go. I always like to unhook the secondary rod and fine tune the primaries before adding the secondaries to the mix. My carbs seem to react better at leaving off the line by adjusting the idle mixture with a cold engine. ------------------
1966 Mustang Coupe: Custom glass hood and BIG scoop sits atop a 289 stroked to 331 c.i., Steel crank and girdle, 5.4 H-beams, Forged slugs, TFS alum. heads, ported Stealth 8020 intake, Xtreme 274 Solid Roller, Holley 750 HP, long tubes, 4speed, 9" 3.50 posi.
11.86 @ 116 mph (7.62 @ 93 mph)full street trim!
DanH [This message has been edited by bluestreek (edited 07-16-2003).]
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Moneymaker
Administrator Posts: 19704
From: Lyons, IL, USA
Registered: May 99
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posted 07-17-2003 10:51 AM
I would plug the front PV orfice and start out wiht some 72 primaries and 80 secondaries.------------------
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,&'03
First SS/MA in the TENS!
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!"
www.moneymakerracing.com
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Helping Hands
Journeyman Posts: 33
From: Salem,OR
Registered: Jul 2003
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posted 07-18-2003 07:51 PM
80's in the rear with a powervalve plug?That seems a bit rich. Are ya sure bout that??
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Moneymaker
Administrator Posts: 19704
From: Lyons, IL, USA
Registered: May 99
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posted 07-19-2003 07:27 AM
No, I just wanted to make your engine too rich so you can wash out your rings.  Of course I'm sure. 
Whadayathink? I'm some kind a moron?  ------------------
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,&'03
First SS/MA in the TENS!
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!"
www.moneymakerracing.com
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Helping Hands
Journeyman Posts: 33
From: Salem,OR
Registered: Jul 2003
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posted 07-23-2003 08:14 PM
Yup, you'r right.I was in too much of a hury to get away from work and made an error in my thinking. I haven't been able to get to a computer till now. I knew I made a blunder as I was driving away from work and thought about what I replied. So you see I'm the FREAKIN MORON!
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