Reference Details
- Common issue
- Four-barrel 389 upgraded with a Tri-Power intake and represented as born Tri-Power.
- Confidence
- reported
- Correct value
- 76X/76W/77J-family or related 389 3x2 evidence, correct three-carburetor induction, date-correct intake/carburetor evidence and matching paperwork when Tri-Power is claimed
- Where to check
- PHS invoice, engine stamp pad, casting and date codes, intake/carburetor tags and restoration documentation
