Distributor Cap: 85-91 Various (Repro) TPI

This is the general service cap. none genuine but does the trick.. 

1985-91 Corvette Tuned Port Injection

1985 & 86 ONLY... Firebird & Camaro 305 F Tuned Port Injected.

• 1985 & 86 only - for some reason GM put this cap on the Distributors ONLY of the 5lt 305 Firebird TA & Camaro that were equiped with Tune Port Injected..
• "F" means the GM F body.. as in Camaro & Firebird Trans Am series..
• ... 4 screw clamp down V8 dissy cap... 
• Caps identified with the coil INSIDE the cap lid.. on top of the cap & it has 4 holes where a screw holds it down.