my question is just that. Im looking for another f-body and I like the style of the Formulas. Were they all TPI or were they TBI?

 

Some were TBI but most were TPI though. I am not sure of the exact numbers but that is how it worked.

 

"Formula" doesn't mean squat. I have seen V6 formulas. (somebody may have just put the decal on their firebird, I don't know) but they could have the 305 TBI, TPI, or the 5.7L. GM was real inconsistant back then.

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'87 Trans Am
S/D TPI retrofit including functional PassKey,
22# injectors,
Whatever chip I feel like burning,
JET AFPR, Ported Plenum,
TB Coolant Bypass, Custom Cold Air,
SSM SFC, KYB Shocks, Boxed LCAs, Wonder Bar,
8mm Accel wires,
Flowmaster Exhaust,
16" GTA rims,
Corvette Servo,
3.73 Posi
4wheel Disc Brakes
Summit 1-5/8" headers, 2.5" Dynomax catback.

Best 1/8: 9.519@72.74

'97 Bonneville SSE

 

All Formulas came with a V8 standard, what kind of V8 is kinda up for grabs.

The WS6 suspension is standard on all Formulas.

 

The base engine on an 87 Formula is the LG4. 305 and 350 TPI were available as upgrades.

From 88-92, the 305 TBI is the standard engine, with 305 and 350 TPI being the upgrade engine.

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1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.23 @ 107.62 MPH
Southern California
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