>Do you have an O2 sensor, and meter?
I have Tracy's air fuel gauge. Not sure quite how to interpret it yet.

> I'd go through the procedure of reloading the default calibrations, and go
from there.
Reading the manual again tonight

> The surging is just a mixture tuning issue, you'll fix that soon enough.
thanks. Makes sense.

> Did your engine rebuilder install a high pressure oil relief valve?
I don't know. He's long gone. How would I find out?

>get a better gauge
I did. An expensive westach quad. It reads 90psi before I start the engine.
:(

> place your hand on the radiator tanks. It will be noticeably hotter from
>the bottom up to where ever the coolant level is.
It has been totally cold after every short run.

>I presume you are using a stock Mazda Thermostat
Yes

>The engine cycling like that makes me thing of a "lean surge"
Sounds reasonable. I'm using 4 of the purple 550 injectors. Hopefully
programming will solve this one.

>Regarding the oil pressure - are you certain that you have the oil filter
>rigged properly?
Hmmm. I'm not sure. I got guidance from a local Mazda guy on this issue.
Maybe he told me wrong. How would I know?

>Where is your oil pressure sensor located?
in the aluminum pad where my oil filter used to be. I now have a remote
filer mounted on the redrive plate fed from the same pad.

>I presume you have the stock oil pressure
>regulator and not one of the high pressure racing ones.
I hope this is something internal to the engine. I never heard anything
about an oil pressure regulator.

Thanks for the ideas guys. Please keep em coming. I feel like a blind man
trying to run though the woods at night. I keep bumping into trees. Ouch.
Does everyone go through this, or is it just me?
John