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#1
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Help me decide-cam
76 feather duster
8-3/4--3.23 4 sp 360 +.030 Hughes stage2 587 heads 8.6 comp wiend dual plane 650 dp 1 5/8 headers 2.5" duals mostly street driving with maybe 1 or 2 times a year at the 1/8th mile. I have 3.91's if I want to get wild. I'm going to replace the 20 year old blue racer with a modern design. Give me you pick. Lunati Vo-doo 002 Lunati Vo-doo 003 comp ex 262 comp ex 268 or a solid of simular size (I have adj rockers 1.6-1 and pushrods.) I would use a Hughes but in my experiance they are hard on valve springs and this car my soon become my dayly driver. |
#2
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If i were staying with the 3:23s i would go the Comp Cams XE274H route,or the XE 284H will really shine with the steeper gears,but with you're 1.6 rockers,thats a lot of lift for a daily driver! These cams produce awesome power for the price! Those stageII heads will work well with these grinds!
Glen |
#3
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I wouldn't go bigger than the XE274H or perhaps equivalent XE cam would be better suited with the 1.6:1 rockers. Only 8.6:1 CR will really make the engine loose the bottom end torwue niided with the 3.23's, and yet it will not respond very well to the bigeer cam even at higher rpm because of the same thing. Your intake is also aimed for lower range operation, and so are the a 5/8" headers, so there is not much sence in going with a big cam unless you change other things. Might also caal Hughes, and ask their remmendation, since you have their heads too.
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#4
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I've used the Hughes cams and they make great power but like I said are hard on valve springs and I don't want to have to change springs every year.
Also I had a 284-.528 purple shaft in her and it was to soft on the low end and millage was just crapy (12mpg highway) so that is why I listed a 268 as the biggest cam. |
#5
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If you feel that the 268 would be the right one for you, go with it. It's very hard for another person to really figure out what the other is after. In my opinion, the 268 in a 360 is a small cam, but I like big cams. Get good quality valve springs wiht the cam you choose, the XE's are relatively quick ram cams (for a chevy at least), and your 1.6 ratio rockers make it even quicker, so the springs must be good.
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#6
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284 .528 is a bitchin piece but would need 6 degrees cam advance to have any bottom end with your set up, and you wanna talk bad gas milage then?
I like solids so I would recommend a SMALL solid. Comp has some small ones around 276* .490 like MOPAR used to sell. |
#7
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3404spdvaliant - "284 .528 is a bitchin piece but would need 6 degrees cam advance to have any bottom end with your set up, and you wanna talk bad gas milage then?
I like solids so I would recommend a SMALL solid. Comp has some small ones around 276* .490 like MOPAR used to sell." Today 07:10 AM That is exactly the cam that I am talking about in the solid lifter thread you replied to 3404spdvaliant. I have to agree with you about it. I originally had it in a .060 over 360 with big valve J heads, about 10.5 compression, Performer RPM, headers, and a 650 Holley. It was in a 1/2T 4x4 with 35" tires, 4.56 gears, and a 2400 stall conv. and i absolutely loved it. Pulled hard all the way up around 6200. I am planning to use that cam, intake, carb, and heads on a .060 over 340 at about 10.5 compression. Ecept this time it will be in a 68 Cuda with that same converter and 3.55s. I think I will still like it. |
#8
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If I had 10.5 comp I would use the .528 but I checked cranking pressure when I had it in and it was only 120psi. I just don't have enough static comp for that cam. I did have it installed 4* advanced. What I need is a cam that will help with the dynamic comp and seeing as how the heads I'm using will handle up to .650 lift I was thinking a fast rate hi lift small duration.
I was hoping to keep the cost under 200 with lifters so the lunati and comp both fit the bill. I have good springs on the heads so I'm not conserned with that part.If some one Know of a small solid that fits the bill let me know. |
#9
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Have a cam grinder cut something like for example[114CL 270* 488 lift]
Talk to chris at engle or comp or who ever you want but thats about all the duration you can afford with 120 psi, in fact this reminds me of a friend of mines situation. |
#10
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I ran a Crane Energizer 272/.454 in a 318 with an Eddy Performer, 650 Eddy carb, stock heads, and headers. My compresssion situation was likely pretty similar to yours, and it didn't work too well. I ran 3.55 gears in a 1/2T 4x4 truck with an auto and stock converter. One thing I will say for it...the top end was great! I could free spin the lil 318 to 6700 before the belts came off, and that was with bone stock heads and springs. It would run down the road at 6200, too. It ran like crap til about 2500, though. I am curious as to how that cam would act in a 360. I suppose with the low compression not a whole lot better. I wonder if the next smaller Energizer would be better. I forget the specs on the smaller one, but I was thinking it was about 262 advertised duration.
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#11
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With more cubes that Crane would probably act a lil smaller than when it was in your 318.
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