
1. remove front A.S.A.

2. Drill an internal expansion chamber

3. Then drill a hole under the big block
into the internal expansion chamber

4. Next tap the new A.S.A. hole

5.Screw in the new A.S.A.

6. Then plug up the front A.S.A. or put the
old A.S.A. back in an then put a stopper in that