1. godfatherofchry

    godfatherofchry Legandary Member Legendary Member

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    well Im sure thos chevy KIDS will get her running for ya!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!


    IM out of HERE!!!!!!!!!!!!!
     
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    • flyfish

      flyfish C8H18+N2O = :-D

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      This is one of the most retarded things I have read in a long time....Your MSD distributor is a VERY nice piece and VERY tune-able....spending money on a new DOWN grade is ludicrous. Let me guess, the person you were talking to was willing to rob you...I mean, sell you this down grade right?

      650 carb on a big block...awesome.....For what its worth, my old mild 360 combo picked up 3 tenths and 3 MPH when I switched from a 650dp to a 750dp (Proform main body swap)....and you will be feeding more cubes....

      Slap your borrowed 750 carb on, set your timing and go test it :violent1:
       
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      • 808 DUSTER

        808 DUSTER Active Member

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        Thanks for replying. thats what i thought when i talked to them also.
         
      • discharger1332

        discharger1332 Well-Known Member

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        You should send a pm to crackedback, listen and learn. He is very skilled, he will not steer you in wrong direction. I have an old holley 750 in pieces you can have if you pay the shipping, then have it built for what you need.
         
      • roccodart440

        roccodart440 Well-Known Member

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        I still can't get over the bit about swapping out a pro billet for a vacum dizzy...

        That guy at 4 seconds flat still swears by racer brown cams and says they are better than any roller on the market.

        Well, I have a vacum MP perf dizzy i'll swap you even for....
         
      • dwire67

        dwire67 Well-Known Member

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        Have it shipped to me and I will rebuild it and set up for you for free and even pay for the shipping to you.
         
      • torredcuda

        torredcuda Well-Known Member

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        OMG!! saying your dizzy doesn`t match your cam is as stupid as saying your muffler bearings are throwing your air/fuel ratio off!!! I run a stock MP distributer and just had it recurved with heavier springs. I had an eratic idle problem and found the light springs that came in it were advancing the timing at idle. I also switched from a 650DP to a 750DP and added a Proform main body and picked up ET and that is on a little 340.
         
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        • roccodart440

          roccodart440 Well-Known Member

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          I had issues with that too. It surged at idle if the idel wwas set too low. It ended up beign an issue with the dist timing. It also advanced way too fast for the street. I had the vac disconected. Much happier with my pro billet.

          I run a 950 proform. I've had great luck with it.
           
        • torredcuda

          torredcuda Well-Known Member

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          BTW if anyone needs a distributer recurved my buddy has an old Allen machine in his garage and can setup whatever curve you want reasonably.
           
        • dusterdoug

          dusterdoug Well-Known Member

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          Cover the fundamentals before throwing parts at it. Assuming it runs clean without missing or popping...

          Compression and leak down test?

          Valve train right if adjustable rockers?

          Dist curve correct?

          Plus/wires/dist cap and rotor all good?

          Cam in at the right CL?

          Is the carb getting full throttle????

          Exhaust system a cork??

          With that MPH, I doubt if it's spinning the tires, just is down on power. So find it...that combo should be in the mid 12's easy peasy.
           
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          • superprotyrn

            superprotyrn Well-Known Member

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            My stock 72 340 duster runs 9.10 in the 1/8 2.0 60 ft with 3.55s and 8 in slicks sounds like your converter if its not spinning.
             
          • dibbons

            dibbons FABO Gold Member FABO Gold Member

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            How much does your Duster weigh? Let me tell you how radical my street legal 1965 Valiant 273 small block (2980 pounds) was to get a best ET of 12.72 at over 108 MPH:
            10" M & H Slicks (29" tall with 10 lbs air pressure)
            Super Stock leaf springs, pinion snubber, frame connectors
            Cyclone fenderwell headers (not equal length)
            4.56 rear end
            4 speed (launch and powershifted @ 6000 rpm, 6400 traps rpm)
            .580 lift 312 degree solid lifter camshaft (Isky at the time)
            10:5 compression pistons (balanced and blueprinted stock block bored .060 over to 282 CiID)
            Stock cylinder heads "ported and polished" with a Dremel tool on the kitchen table.
            600 CFM Holley Double Pumper on Tarantula Manifold
            electric fuel pump, trunk mounted battery, fuel cool can (for ice), no power accessories
            Your big block should be able to match this performance if it is modified in a similar fashion but I believe you have a long way to go still. Have a blast and let me know when you break into the twelves!
             
          • Abodybomber

            Abodybomber Breaking street machines , since 1983.....:) Legendary Member

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            Nice numbers,old school!
             
          • bobscuda67

            bobscuda67 Well-Known Member

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            Did you get it sorted out yet? We want to know, at least I do.
             
          • dodge freak

            dodge freak Well-Known Member

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            Are the valve springs good, do they match the cam ? What RPM do you shift at ?
             
          • AJ/FormS

            AJ/FormS 68 B'cuda fb, Form S clone ... 367/A833/3.55s

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            another post bites the dust
            -I had a pure stock, nearly right off the showroom floor,1970 Swinger 340 that went 14.4@98 mph on E70-14 belted tires with 3.55s. THe year was 1971. I was 18,single and 145 lbs. Those were the days. I paid $2400 Canadian for it in the fall of 1970. It had 11000 miles on it. Yup.
             
          • Prine

            Prine A-Body Fanatic

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            I read this whole thread....and I deduce:

            Get rid of the 4160 Holley......get a 4150...and Open 1" Spacer.

            4777-2, or 4779

            650 DP/750 DP

            Change over to 275' Drag Radials...and footbrake to 2800

            Ensure WOT actuation via Gas Pedal/Carb......

            Use 91/93 Octane with 38* advance

            SHOULD RUN like this:
            [ame]http://youtu.be/SNAav55uu64[/ame]
             
          • mguner

            mguner How many is too many?

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            Carb should help a bunch. Get as much initial timing as it will stand and make sure it doesn't over advance. 280 is a pretty big cam for a fairly stock 383. Work that suspension or get slicks for the 60ft. Stock stuff can work if set properly. Did you see the Hemi Super Bee on red line bias ply?
             
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            • jdsduster

              jdsduster Well-Known Member

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              this really cracks me up.ask for help,gets all the help he needs.and not a word on what happened.why even post
               
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