Re: engine years. options
Looks kinda like an injector O-ring but I can't tell from that distance. Did you pull the injectors out before the manifold, or leave it all together?
If you pulled it apart, the oring could roll off the injector tip and fall there when you pulled the manifold off. Makes sense in my head at least.
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'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING
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