iam getting a little dieseling at shutoff also. i have blocked off my egr and my timing is advanced to 8btdc because it seemed like a rich condition. im goimg to back the timing off to 5deg and try that, it only does it after running it on th eroad for untill it warms up completly. i never thought the egr would cause this but after thinking about it, it makes sense. im not trying to jack this thread but i have a similar problem.

btw its an 85-up block with everything from an 84 truck , enginbldr head , 261c cam and a weber 38.

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