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jets size for my 440? #912953
01/24/11 04:54 PM
01/24/11 04:54 PM
Joined: Dec 2009
Posts: 793
United states wisconsin
bigblockbryan Offline OP
super stock
bigblockbryan  Offline OP
super stock

Joined: Dec 2009
Posts: 793
United states wisconsin
okay last summer i battled with my timing and it wasnt that now heres my deal i bought a 484 comp cam for my 440 running 10.1 comp with 346 heads with a stock outta the box elderbrock performer 750 carb what size jets should i be using with with this cam i also have a performer intake a dual plain mopar electroic ignition i think im gonna go buy a zip kit this friday dont now when ill start on the mighty fury battle again but my muscle car bug is starting to bite again

Re: jets size for my 440? [Re: bigblockbryan] #912954
01/24/11 06:37 PM
01/24/11 06:37 PM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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RapidRobert Offline
Circle Track
RapidRobert  Offline
Circle Track
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
I'd think the performer 750 would be jetted fairly rich out of the box. refresh us on the symptoms.


live every 24 hour block of time like it's your last day on earth
Re: jets size for my 440? [Re: RapidRobert] #912955
01/24/11 06:44 PM
01/24/11 06:44 PM
Joined: Aug 2004
Posts: 1,213
Los Angeles, CA
Mobarge Offline
pro stock
Mobarge  Offline
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Joined: Aug 2004
Posts: 1,213
Los Angeles, CA
Your combo is fairly close to one I had a while back, and I was running the Eddy carb - got rid of it after months of trying and went with the Mighty Demon 750. Right off, it solved most of the problems I was having.


'71 SSP - SOLD!
Re: jets size for my 440? [Re: Mobarge] #912956
01/24/11 06:53 PM
01/24/11 06:53 PM
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck Offline
Not enough dumb comments...yet
Mr.Yuck  Offline
Not enough dumb comments...yet

Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Quote:

Your combo is fairly close to one I had a while back, and I was running the Eddy carb - got rid of it after months of trying and went with the Mighty Demon 750. Right off, it solved most of the problems I was having.




don't say that the carterbrock faithful will hear you.
That said, buy the jet kit and have a go at it. I think they are shipped with almost the biggest rods. Make sure the floats are set well and yo have no more than 7psi of fuel pressure. Then tune it with a good vacuum gauge. Also you timing should be set beofre you try and adjust the carb.


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Re: jets size for my 440? [Re: Mr.Yuck] #912957
01/24/11 08:34 PM
01/24/11 08:34 PM
Joined: Jan 2003
Posts: 74,904
U.S.S.A.
JohnRR Offline
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JohnRR  Offline
I Win

Joined: Jan 2003
Posts: 74,904
U.S.S.A.
Quote:

Quote:

Your combo is fairly close to one I had a while back, and I was running the Eddy carb - got rid of it after months of trying and went with the Mighty Demon 750. Right off, it solved most of the problems I was having.




don't say that the carterbrock faithful will hear you.
That said, buy the jet kit and have a go at it. I think they are shipped with almost the biggest rods. Make sure the floats are set well and yo have no more than 7psi of fuel pressure. Then tune it with a good vacuum gauge. Also you timing should be set beofre you try and adjust the carb.




This is one case where your standard get a holley and never look back ... would be a welcome response , the performer 750 is a piece of junk .

Re: jets size for my 440? [Re: JohnRR] #912958
01/24/11 09:28 PM
01/24/11 09:28 PM
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck Offline
Not enough dumb comments...yet
Mr.Yuck  Offline
Not enough dumb comments...yet

Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Quote:

Quote:

Quote:

Your combo is fairly close to one I had a while back, and I was running the Eddy carb - got rid of it after months of trying and went with the Mighty Demon 750. Right off, it solved most of the problems I was having.




don't say that the carterbrock faithful will hear you.
That said, buy the jet kit and have a go at it. I think they are shipped with almost the biggest rods. Make sure the floats are set well and yo have no more than 7psi of fuel pressure. Then tune it with a good vacuum gauge. Also you timing should be set beofre you try and adjust the carb.




This is one case where your standard get a holley and never look back ... would be a welcome response , the performer 750 is a piece of junk .




what???


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Re: jets size for my 440? [Re: RapidRobert] #912959
01/25/11 04:20 PM
01/25/11 04:20 PM
Joined: Dec 2009
Posts: 793
United states wisconsin
bigblockbryan Offline OP
super stock
bigblockbryan  Offline OP
super stock

Joined: Dec 2009
Posts: 793
United states wisconsin
well it would run really good not under load then as soon as there was load it would start to miss bad at peak rpm and i timed the be jeus outta that motor last summer im actually thinking about pulling the motor next month and just having it dyno tuned but on the other hand would like to now what im doing for my next build too

Re: jets size for my 440? [Re: bigblockbryan] #912960
01/25/11 04:26 PM
01/25/11 04:26 PM
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck Offline
Not enough dumb comments...yet
Mr.Yuck  Offline
Not enough dumb comments...yet

Joined: Jan 2003
Posts: 24,562
Brookeville, Md
might not be a carb problem, have you checked your volts at the coil? I had a balast go bad and guess what ot would start run fine as soon as you dropped it into gear it would flutter and die...just a thought.

Re: jets size for my 440? [Re: Mr.Yuck] #912961
01/25/11 04:30 PM
01/25/11 04:30 PM
Joined: Dec 2009
Posts: 793
United states wisconsin
bigblockbryan Offline OP
super stock
bigblockbryan  Offline OP
super stock

Joined: Dec 2009
Posts: 793
United states wisconsin
yea i believe i checked it i will keep it in mind come spring furys under 2 feet of snow maybe ill go buy a new coil i have had the same one on it since 2003 i got ballast resister up the tail but im pretty sure changed that around

Re: jets size for my 440? [Re: bigblockbryan] #912962
01/25/11 09:01 PM
01/25/11 09:01 PM
Joined: Oct 2010
Posts: 161
Huber Heights Ohio
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greenpigs Offline
member
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Joined: Oct 2010
Posts: 161
Huber Heights Ohio
How old are the spark plug wires & what brand are they?


69 Charger RT
Re: jets size for my 440? [Re: greenpigs] #912963
01/26/11 05:08 AM
01/26/11 05:08 AM
Joined: Dec 2009
Posts: 793
United states wisconsin
bigblockbryan Offline OP
super stock
bigblockbryan  Offline OP
super stock

Joined: Dec 2009
Posts: 793
United states wisconsin
theyre acell 3-4 years old never had a single problem with this engine untill i put this 484 cam in. I had a resto mod cam before then what happened was i had a bad fuel pump that leaked gas into the block wrecking the bearings and the cam so i decied when i replacd everything to up the cam in it to the 484

Re: jets size for my 440? [Re: bigblockbryan] #912964
01/26/11 07:34 AM
01/26/11 07:34 AM
Joined: Oct 2010
Posts: 161
Huber Heights Ohio
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greenpigs Offline
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Joined: Oct 2010
Posts: 161
Huber Heights Ohio
I have not heard good things about those wires. Even if you don't think they are a problem I would check them for ohms resistence...you may be suprised. 150 ohms per foot is the MOST I would let slide. Firecore50's are yep 50 ohms per foot and worth the coin if you find your current wires suck.


69 Charger RT






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