Chips I have no idea what kind?

[Beecha91]

One says MAG-IV, another just says 55 - 108 , and the last says ACX A 0942. Any clues, or thoughts would be great thanx!

Don-

 

[ijames]

Mag IV is a chip from Lawrence Conley, most likely for stock injectors if there are no other numbers on it. The 55-108 chip is likely a race chip (108 octane) for 55 lb/hr injectors but no idea who made it, and the acxa 0942 is the stock chip for late 86 and all 87 TR's.

 

[Beecha91]

Thanx!