Hi Don;
        Also meant to ask if you have removed and replaced the stock 20B
    exhaust
        sleeve inserts.
        I have heard they are quite restrictive and many people replace
    them
        with 13b turbo inserts.
        Although removing them is a good way to break taps...
        Cheers
        Cary

    I haven't removed my exhaust inserts yet, but I've been considering it.
    Any tips on how to do this?  Why not just port out the ones that are
    already there?
    Don

Hi Don;
I have had limited success...
Some people seem to have it down to an art, there may be an easier way.
I drilled and tapped the roll pins to insert the highest strength bolt I
could find.
I have broken several taps this way.
A small hit with a hammer will help loosen the pins before being tapped.
   http://bdc.cyberosity.com/v/Technical/RollPin-Removal/

I have also heard of people drilling them out completely and others
welding something to grip to the pin.
   http://www.nopistons.com/forums/index.php?showtopic=38897

I would practice on a junk housing first.

Cheers
Cary

Hi, I am happy to help on this one,

It is easy to remove, just use a small tap, screw it in the retaining
sleeve on the side of the housing, clamp the end of the tap it with a
vice grip at 90 degrees and using a small hammer hit the vise grip
lightly slipping the sleeve out.

I did it this way without breaking anything.

JP

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