11-25-2013, 09:28 PM
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CC Member
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Join Date: May 2001
Location: California,
Ca
Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
Posts: 6,592
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Ive been runing 48 IDA's on a 289 for a few years. The cam I am using is a solid lifter Flat Tappet. Duration at .050 is 238/248, .536 lift and a lobe center of 107 degrees for intake and 117 degrees for exhaust. I am going to be building another engine soon and will use a cam very similar to this. It seems a little more agressive than many have but it works quite well. Idles at about 900, pulls like crazy 6600-6800, then nozes over. 37 mm chokes currently larger ones may help RPM carry a little further, but the engine is very flexible without and bad spots.
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Rick
As you slide down the Banister of Life, may the splinters never be pointing the wrong way 
Last edited by Rick Parker; 11-25-2013 at 09:33 PM..
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