If one is not concerned about 100% originality, a non-TACH drive FYB DIST (DUAL ADVANCE) can be used and there are electric tachs available to fit the 55-57 BIRD instr panel opening.
It is an option if the LOM gives problems (those mainly being someone knowledgeable in setting one up) and will give greater performance (even with the H4000). Just make sure you hang onto to it as they are valuable.
REFERRING URL -
http://forums.y-blocksforever.com/Topic154056.aspx
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- WHY IS IT ... -
... that everything you buy in the grocery store is either wrapped in or contained in plastic but the government doesn't want you to carry it out in a plastic bag?
WONDERING IN W(BY GOD)V ...
DIAGNOSED CDO - (OCD In Correct Alphabetical Order)