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Welp, I did my valve lash today, and Gnarly, you get a gold star! As a reminder this is a new engnbldr Street RV head with a new 261C cam. Reused the rockers as they were in perfect shape and just got polished up a bit.All exhaust valves and two of the intake valves were tight by 001. It should be no surprise that the 1 and 4 intakes were at spec, considering they will actually be a bit loose if the base circle technique is not used (which i doubt it was.)Now, for the really surprising part, after I got everything to spec (used base circle on 1 and 4 intake) and buttoned her back up, my idle RPM was sitting at 1350. That's a good 500 higher than it was set before. Taking her for a test drive I am feeling noticeably more low end power, and seemingly more midrange judging from a couple hills I pulled. She kinda wants to jump off the line now. Above 3000 seems to be about the same (which is to say, awesome ) Will need to road test a bit more to confirm.Now, another surprise, I can get the idle down to 750 - where it should be - without the rough shaking that was happening before. I felt before that I was getting a miss down that low so I set the idle to 850 or 900 to smooth it out. That is no longer necessary. The idle sounds a lot smoother too, whereas before there was sort of a "chug" happening, which, though it sounded cool, is not normal for a 22re in my experience.So, my feeling here is 001 off on the lash is probably not enough to burn a valve and isn't dangerous (Although I guess I really have nothing to back that up...). Clearly however, there are massive performance differences to be had with this cam. I wonder how much of the hate for this cam could be resolved with a very precise lash setting.Other note, the lobes definitely do not line up perfectly with the rocker pads. All of the pads had complete contact - none were going past the edge of the lobes - but several were pretty close to the edge. I do not have a stocker to look at right now so I am not sure if they are supposed to be perfectly centered? In any case I can't see it being a problem. My cam lobes seem to be in perfect shape, no scoring or discoloration or anything. I guess I got the break-in correct.My machinist who built the motor never said anything about the lobes, and he builds a lot of 22res, so I wonder if they are just never really centered and it isn't a problem.
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