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1970 383 road runner 4 speed - what carb? #1968575
12/12/15 08:54 PM
12/12/15 08:54 PM
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Hightstown, NJ
njdevil2 Offline OP
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OK, being I wanted to redo this right the first time, I purchased a used Street Avenger 660 and rebuilt it. Full throttle the thing is scary fast but part throttle and idle is horrible. It surges and misses like no ones business.
I borrowed a Holley 750DP from a friend and the car runs better. So, I have to buy another carb, preferably a Holley, cuz that's what's was on it new(in 1970).

It is:
383 - 4 speed, 9.5:1 compression, PS, shorty headers, 2.5" Pypes exhaust with X pipe and a 2" spacer(which I used cuz the carb and fuel lines would not fit it).

I don't care about stock, or fuel mileage, something that will not be over carbed and make nice HP. I'd like to keep it around $400 if possible. I haven't looked just yet, I'm just happy the thing runs better now, but the 750 will have to go back the owner sooner or later.....thoughts?

Last edited by njdevil2; 12/12/15 08:55 PM.

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Re: 1970 383 road runner 4 speed - what carb? [Re: njdevil2] #1968655
12/12/15 11:25 PM
12/12/15 11:25 PM
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Horsham, Pa.
Finoke Offline
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No thoughts on the carb situation but I would love to see a picture of the car grin

I'm glad to see your getting it on the road boogie

Re: 1970 383 road runner 4 speed - what carb? [Re: njdevil2] #1968664
12/12/15 11:40 PM
12/12/15 11:40 PM
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Lincoln Nebraska
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RapidRobert Offline
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Quote:
t but part throttle and idle is horrible. It surges and misses like no ones business.
fuel-bump the pri jets up 4 sizes & (re) try it (2) ign-check rotor phasing


live every 24 hour block of time like it's your last day on earth
Re: 1970 383 road runner 4 speed - what carb? [Re: njdevil2] #1968688
12/13/15 12:03 AM
12/13/15 12:03 AM
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Posts: 10,554
Rittman Ohio
fourgearsavoy Offline
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Rittman Ohio
Really hard to beat the street/strip carbs from Quickfuel twocents
They have a version of the old Holley 3310 that is reasonably priced for a brand new carb with electric choke and adjustable secondaries up

Hope this link pops up shruggy

http://www.quickfueltechnology.com/carburetors/street/hr-series/hr-series-carburetor-780cfm-vs.html

Gus beer


64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60
Re: 1970 383 road runner 4 speed - what carb? [Re: njdevil2] #1968788
12/13/15 03:30 AM
12/13/15 03:30 AM
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Someplace you aren't
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SomeCarGuy Offline
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The quickfuel should be good or grab an old 3310 to rebuild.


I want my fair share
Re: 1970 383 road runner 4 speed - what carb? [Re: njdevil2] #1968940
12/13/15 02:41 PM
12/13/15 02:41 PM
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Posts: 457
Hightstown, NJ
njdevil2 Offline OP
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Tom----you have no idea how long a road this has been-----on thing after another...lol

Gus - I think Jegs shows a HR-750-VS, would that work?

Summit, Jegs and QF all show the same price, QF charges shipping, so its a toss up. $437 delivered....The 750 is cheaper, however....


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Re: 1970 383 road runner 4 speed - what carb? [Re: njdevil2] #1969049
12/13/15 05:52 PM
12/13/15 05:52 PM
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Washington
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madscientist Offline
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Do a QF 750 DP. Why bother with a VS?


Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
Re: 1970 383 road runner 4 speed - what carb? [Re: njdevil2] #1969063
12/13/15 06:27 PM
12/13/15 06:27 PM
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Jacksonville, FL
Chris2581 Offline
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FWIW.... I ran a 750 Holley Dp on my 383 4-speed car with no problems. I did have a old(1972) Street Hemi cam in it


Nautilus Racing-
We use Superformance gaskets and Turbo Action converters/products.
Re: 1970 383 road runner 4 speed - what carb? [Re: madscientist] #1969178
12/13/15 10:53 PM
12/13/15 10:53 PM
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Rittman Ohio
fourgearsavoy Offline
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Originally Posted By madscientist
Do a QF 750 DP. Why bother with a VS?


Maybe because it's about $100 over what he want's to spend shruggy


64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60
Re: 1970 383 road runner 4 speed - what carb? [Re: njdevil2] #1969189
12/13/15 11:03 PM
12/13/15 11:03 PM
Joined: Dec 2004
Posts: 10,554
Rittman Ohio
fourgearsavoy Offline
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Originally Posted By njdevil2
Tom----you have no idea how long a road this has been-----on thing after another...lol

Gus - I think Jegs shows a HR-750-VS, would that work?

Summit, Jegs and QF all show the same price, QF charges shipping, so its a toss up. $437 delivered....The 750 is cheaper, however....


The 750 has only the most basic features that's why it's so inexpensive. I prefer a metering block on the secondaries,and the 4-corner idle is a very nice feature.
Is this the one http://www.quickfueltechnology.com/carbu...-750cfm-vs.html

Gus beer


64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60
Re: 1970 383 road runner 4 speed - what carb? [Re: njdevil2] #1969326
12/14/15 03:18 AM
12/14/15 03:18 AM
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Posts: 457
Hightstown, NJ
njdevil2 Offline OP
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Yup, that's the one.

For the money, it looks like the QF carbs have adjustable secondarys, which the Holley does not. Also viewable float bowls.
I had thought of a Demon carb, but for features, it looks like the Quick Fuel is better.
I have some time to ponder this, my bonus from work will pay for at least $250 of the cost, I think, by months end.
My daughter, who's in Florida just had her Reliant towed again. It just cost me $1700 the last time...so I'm looking forward to another bill..the tow alone was $200....so it looks like after the new year I can do something.


1970 road runner Convertible
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Re: 1970 383 road runner 4 speed - what carb? [Re: njdevil2] #1969865
12/15/15 12:46 AM
12/15/15 12:46 AM
Joined: Dec 2004
Posts: 10,554
Rittman Ohio
fourgearsavoy Offline
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Kind of Ironic with a car called "Reliant" work

I have a Quickfuel 1050 carb on my car and it was almost perfect out of the box. I just jetted it up a bit and set the base idle mixture and it runs like a tornado, I give it half throttle and it seems too fast eek Then I mash it all the way and whoever is in the passenger seat is looking for something to hold onto laugh2

Gus beer

moria burnout.JPG

64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60
Re: 1970 383 road runner 4 speed - what carb? [Re: njdevil2] #1969997
12/15/15 05:27 AM
12/15/15 05:27 AM
Joined: Jan 2004
Posts: 457
Hightstown, NJ
njdevil2 Offline OP
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Yeah, unfortunately my daughter loves the Reliant and doesn't want to give up on it. I told her another $500 and that's it.

I may just bite the bullet and get the 780. Amazon.com has it for $416 and I already have Prime, so it's free ship....just have to make sure I'm not taxed or its back to Jegs...lol.


Last edited by njdevil2; 12/15/15 05:28 AM.

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