Re: Just fired up my new 440 - Holley questions
[Re: Dakota_Don]
#1172838
02/05/12 10:32 PM
02/05/12 10:32 PM
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Joined: May 2011
Posts: 340 Alaska
73rrak
OP
enthusiast
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OP
enthusiast
Joined: May 2011
Posts: 340
Alaska
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I just pulled a spark plug and it's black and wet.I only ran this motor for 20 minute break in and then maybe another 5 minutes after that. The plugs are Autolite 23's is that too cold for this motor ?
Last edited by 73rrak; 02/06/12 12:57 AM.
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Re: Just fired up my new 440 - Holley questions
[Re: 73rrak]
#1172840
02/05/12 10:37 PM
02/05/12 10:37 PM
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Joined: Jan 2003
Posts: 2,001 s. e. pa.
calrobb2000
top fuel
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top fuel
Joined: Jan 2003
Posts: 2,001
s. e. pa.
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hi what is your fuel preasure ? you do not want over 7 psi max 1 what pump ? what is timing set to? idel speed start at 800. vac with trans in d warm is ?
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Re: Just fired up my new 440 - Holley questions
[Re: calrobb2000]
#1172841
02/05/12 11:21 PM
02/05/12 11:21 PM
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Joined: Jan 2003
Posts: 9,826 las vegas
70AARcuda
master
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master
Joined: Jan 2003
Posts: 9,826
las vegas
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Holley 4780-5 Carb. This carb was rebuilt by a meathead that put the metering blocks on backwards
and did you take it apart and check thing out before firing up the engine....
the needle and seat probably had dirt in it...usually tapping on the housing will unclog it..or brake cleaner will work too...
Tony
70 AARCuda Vitamin C 71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield) 71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas) 71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)
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Re: Just fired up my new 440 - Holley questions
[Re: 73rrak]
#1172844
02/06/12 01:02 AM
02/06/12 01:02 AM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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I'd go thru the carb & just me I'd take off the intake & regoop the cam/lifters
live every 24 hour block of time like it's your last day on earth
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Re: Just fired up my new 440 - Holley questions
[Re: RapidRobert]
#1172846
02/06/12 01:09 AM
02/06/12 01:09 AM
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Joined: May 2011
Posts: 340 Alaska
73rrak
OP
enthusiast
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OP
enthusiast
Joined: May 2011
Posts: 340
Alaska
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Quote:
I'd go thru the carb & just me I'd take off the intake & regoop the cam/lifters
Rapid ..... I was able to complete the cam break in before it really started running like crap. Do you think it would be worth pulling the intake off to "goop the lifters" ?
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Re: Just fired up my new 440 - Holley questions
[Re: 73rrak]
#1172847
02/06/12 01:10 AM
02/06/12 01:10 AM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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No you're good there Bro.
live every 24 hour block of time like it's your last day on earth
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Re: Just fired up my new 440 - Holley questions
[Re: 73rrak]
#1172849
02/06/12 01:41 AM
02/06/12 01:41 AM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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You'd wanna correct his mistakes (the blue no stick gaskets are good) then invert each bowl & set the float level w a drill bit(s) (forget the dimentions). On a real wild cam I'd rather use the drill bits for a first/last adjustment. EDIT alot of people overtighten jets and undertighten PV's, not crazy just a bit
Last edited by RapidRobert; 02/06/12 01:59 AM.
live every 24 hour block of time like it's your last day on earth
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Re: Just fired up my new 440 - Holley questions
[Re: RapidRobert]
#1172850
02/06/12 02:42 AM
02/06/12 02:42 AM
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Joined: Aug 2003
Posts: 12,291 Kent, Wa
340SHORTY
Truck Nut
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Truck Nut
Joined: Aug 2003
Posts: 12,291
Kent, Wa
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Take the bowls off. Turn them upside down and adjust the needle and seat to where the floats are level. This will get you real close.
What are the primary jets? Aset of 70/72s would be a good starting point. What is the power valve. Take a vac reading, divide that number by 2. Thats the power valve you need.
I am truckless..
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Re: Just fired up my new 440 - Holley questions
[Re: 73rrak]
#1172851
02/06/12 03:00 AM
02/06/12 03:00 AM
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Joined: Feb 2003
Posts: 21,318 Manitoba, Canada
DaytonaTurbo
Too Many Posts
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Too Many Posts
Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
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It's going to run poorly until you get the timing dialed in. Been there, done that. Trust me. I can't see that whiplash cam liking only 10* of initial timing. I ran more initial than that with a stock cam. Try bumping your initial up to like 16 and go from there. Then play with the timing and see how much timing you can add before the engine starts to fight against the starter. This happens when the engine is hot and you crank the starter. You will be able to tell when you get to this point. Then back the distributor off a hair and lock it down. After that you will probably need to recurve your distributor to get the total timing to 36-38* all in somewhere around 2600-2800rpm. Remember, timing affects fueling. Fueling does not affect timing. So obviously you get the timing setup correctly first. Half-assing it to do the cam break-in is fine, we all do it that way. But now is the time to get that setup correctly before you try additional carb tuning IMO.
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Re: Just fired up my new 440 - Holley questions
[Re: 73rrak]
#1172854
02/06/12 10:50 AM
02/06/12 10:50 AM
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Joined: Jan 2003
Posts: 5,444 Indiana
YO7_A66
master
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master
Joined: Jan 2003
Posts: 5,444
Indiana
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Pull the needle/seat assemblies and clean the rubber seats. You might have some garbage in them that may not have allow them to close. Then re-adjust your floats.
1970 YO7 A66 [Canadian Export] F8 Challenger 340 (Currently in shop for stroker assy.)
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Re: Just fired up my new 440 - Holley questions
[Re: YO7_A66]
#1172855
02/06/12 01:23 PM
02/06/12 01:23 PM
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Joined: Oct 2003
Posts: 3,698 NE Oklahoma
Von
master
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master
Joined: Oct 2003
Posts: 3,698
NE Oklahoma
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Im assuming you double checked that you dont have a plug wire(s) crossed?
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
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