I've found my 22RE is a bit touchy with bored out TB, cam and 4:1 headers. I have to keep the timing right close to stock (5 BTDC) as any advancing over that and the idle speed is too high. I also added a stiffer throttle return spring on the TB to help keep it fully closed. But with that setup I can set the idle anywhere from 700 on up, usually keep it around 850 or so as it idles a little smoother there and every once in a while it'll drop to a slower idle and it'll get rougher unless I set the normal idle a little higher.

r.c.brown@ieee.org
TruckEditor@tlca.org
Project: 4Crawler
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