Could be bad oil filter adapter, if it's bugpack or empi (not sure
which one) it will not seat properly and when everything is nice and
cool blow the seal out. Check whether mating surface on the adapter
is flat. cb adapter is good.

Anton

On Apr 13, 12:48 pm, Anthony W > wrote:
> Raymond Lowe wrote:
> > Lastly, check out the oil relief/regulator in the case. The one
> > towards the rear of the car. Polish the piston with crocus until it
> > shines. Jam a wood dowel into the end and carefully check
> > that it slides all the way up the bore without any hanging up.
> > When the case gets tapped for full-flow, sometimes the cut
> > threads leave a sharp edge or burr that can hang up the piston.
> > Polish it out if you have to. Compare the spring(s) with known
> > samples to make sure you didn't get a "booster" kit spring.
> > You can't adjust these other than use the correct parts.
>
> > To blow the seal out on an HP1 means you've got pressure
> > well into the hundreds.
>
> The only thing I can add is check the relief spring and piston towards
> the front of the car. If it has the long piston with a section turned
> down, swap it out for a shorter stock one. I had the same problem with
> my engine and a stock sized pump after a rebuild on a similar but
> somewhat milder engine (1690cc, Engle 100 cam and full flow case.)
>
> Tony