Back from the track. I changed too many things at once so I'm not sure what I learned.

I did bump the record to 100 .9xxx (I don't have the timing slip here in the house) from 100.1918. So a little better. I'm not sure I have the cam timed the way I need it but so far no big difference. The truck felt STRONG off the line and I'd sometimes get a puff of black smoke upon startup so I'm sure it's a bit richer than before - this makes me think the spring is doing it's job.

My next major mod will be a Dieselmeken pump. I'll check with Goren for optimum IP timing, etc. and we'll see which spring he recommends.

Dan