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I currently have a Crane cam with 226/236 duration and .450/.450 lift at the valve. Recently I had a lobe go flat so Im going to get a new cam, but I want to get a bigger (and better) one. Before the cam went flat, it would start to come into the powerband around 3000, made good power to around 5000, and would rev to 6,000. I would like it to be able to rev to 7,000, and I would like the powerband to be a bit wider as well. Im thinking about going with a wider lobe separation angle and I know Im going with more duration, but Im not sure what numbers to go with. Im thinking about a crane cam with 252/252 duration and .450/.450 lift. Should I get some stiffer valvesprings?
 

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I had the Motorsport Auto cam #2003. 270/280 duration – .470 (or 480, I don't recall) lift in my 240, but It was with a 280 block. It pulls great from about 3000/3500 well up to 7000. I gave that one to my friend who has it with the same setup. I now have a .510 lift with 300 duration. I like it alot! I'm sure that the #2003 will run great on the 240 as well. My friend is running it with SUs and his car sceams!
 

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Re: Schneider Racing Cams

oh forgot to add this also

has price, and where i got the RPM values

FlatLander Racing -http://www.flatlanderracing.com/schcamsdatsun.html
(again # 17034 )
 
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