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Trotterlg is right, 108 is fine. Especially with that low of a lift and duration. you aren't going to have hardly any valve overlap.
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I wouldn't run a 108 with lots of duration on a FI car because I'm sure the lack of idle quality would be make tuning a bitch.Last edited by ericjon262; 12-08-2012, 12:37 AM."I am not what you so glibly call to be a civilized man. I have broken with society for reasons which I alone am able to appreciate. I am therefore not subject to it's stupid laws, and I ask you to never allude to them in my presence again."Comment
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Yes, that is exactly why I posted the info. The 3.4 idles (OK) with the Holley 390, although it's way choppy, when I turn on the A/C, it will die at idle. I am pretty sure TBI can't handle this cam unless you're pretty talented with a fuel log/ program tuning on the earlier OBD 1s...Originally posted by ericjon262 View Post
I have given up on TBI... it s too primitive compared to OBD II multi port or any system afer TBI.Last edited by Mad Max; 12-07-2012, 11:45 PM.Comment
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It wouldn't take much to get that TBI to work well with a big cam. just basic tuning. TBI actually works very well, lots of the new aftermarket systems are going back to it for carb retrofits.
there are constants that will increase the idle speed when the A/C is turned on, same with an electric fan. I'm guessing the idle just needs to be kicked up a few hundred RPM anyways, that's normal for a big cam.
My cam is on a 110 LSA but with tons of duration, over 70 degrees of overlap and i have to idle at about 1100-1200 RPM with the regular plenum. With the ITB's i can idle around 800 but that's a whole other world there.Comment
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