Quote:
What air bleeds are you running?
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| Which Holley carb would you run. (links) https://www.slantsix.org/forum/viewtopic.php?t=27883 |
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| Author: | BigBlockBanjo [ Tue Mar 18, 2008 1:45 pm ] |
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Well, if it were me, I would run a small Edelbrock AVS carb. (Secondary opening is adjusted easily). BUT....you will probably run faster at WOT with a Holley. I vote 390 then. |
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| Author: | Slant Cecil [ Tue Mar 18, 2008 5:56 pm ] |
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If you want to try a 390DP first, I checked with a pal to see if he had a spare. No spare, but I can rob the one off his Late Model, he hasn't raced it in over a year. I think I have (may have sold it) a 600VS you can try, don't recall the list # but I know it's not a #1850. If you want more, I have a #3310 (rediculus) and a #9375 (even more rediculus); or less, a #7448, #4412 and #6425 (this 2bbl will flow more than a 390DP, 475+cfm if rated like a 4bbl). I'd go with a 650DP before I went with a 600DP. I kinda think the 570 Street Avenger carb you have would be a good choice for a well modified street slant six. I don't know where they get 570, it has the same venturi and throttle bore as the 450 Truck Carb you have. I know some have good luck with the 500 Edlebrock but I don't like the huge boosters, it appears to be a 600 with the flow restricting boosters giving it the 500 rating. |
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| Author: | slantzilla [ Tue Mar 18, 2008 6:11 pm ] |
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Quote: What air bleeds are you running?
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| Author: | Rug_Trucker [ Tue Mar 18, 2008 7:31 pm ] |
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The 390 you link to is the Nascrap 390? What about the other 390? |
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| Author: | Bren67Cuda904 [ Tue Mar 18, 2008 7:56 pm ] |
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What other 390DP are you talking about? Zilla- So you have run the 390 NASCAR carb? What are your setting? Please.  These carbs come with out high speed air bleeds new. The guy/girl that owned it before you must have screwed some in. What size are they?I now own one of these carbs and things look very promising so far. I know you like to be a little secretive, but I'd like to make it to the track this Friday. I am in a bit of a hurry to get a 14 second pass time slip. I'll explain when I am aloud to do so.  Don't ask, I'll tell you guys when I can. But in the mean time those setting would be very handy in getting me in the ballpark.
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| Author: | Joshie225 [ Tue Mar 18, 2008 8:01 pm ] |
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Brenn, In the other thread about this topic you mentioned it was a little lean on the top end. So go smaller on the air bleeds and the top end will get richer. Cut and try, cut and try. |
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| Author: | Aggressive Ted [ Tue Mar 18, 2008 8:22 pm ] |
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Brennan, My buddy has a 64 Valiant he just finished, with a SL6 motor very similar to yours, bored .090 over. but not stroked. 10 to 1 compression, .550 lift on the cam, Clifford set up like yours but with a smaller 2.5" tail pipe. He is using a Holley 600 double pumper and it is very smooth, no bogs it just scoots. No drone either, but a very nice sound. The track opened a couple of weeks ago and his first time slip was a 14.06. He is using a spool with 4.11 gears. Not bad for P235 14" tires. The engine is only 3 weeks old so he is still tuning. I have listened to it and watched it many times over the past 3 weeks. The 600 DP seems to very responsive for his build. I hope all goes well with yours, just wanted to let you know that a 600DP isn't too big like some fear.
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| Author: | Dart270 [ Wed Mar 19, 2008 6:15 am ] |
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I would run a 600 DP rather than a 600 VS on a Slant. My guess is that Ted's buddy's car is about 400 lbs lighter than Bren's, and a more limited purpose vehicle. Lou |
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| Author: | Bren67Cuda904 [ Wed Mar 19, 2008 7:05 am ] |
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http://www.slantsix.org/forum/viewtopic.php?t=27920 Trying to combine two threads. Please post to the link above. |
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| Author: | BigBlockBanjo [ Wed Mar 19, 2008 9:34 pm ] |
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Quote: ...I don't like the huge boosters, it appears to be a 600 with the flow restricting boosters giving it the 500 rating.
That's exactly what it is.  Edelbrock will tell you the same thing.....If I remember right, even the air bleeds are the same. You could actually change the boosters on a 500 and get a 600. Cheap, yes, but effective. I think that's why Holleys are better in race situations....they pay more attention to venturi shape, and size them accordingly.
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