High Performance Injuns

High Performance Injuns A Magical Place Where Pure Pontiac Power Rules & Injunuity Is The Chief Medicine Man's Chosen tool.

Injection is nice, but…PontiacSpeedShop.com
02/23/2026

Injection is nice, but…
PontiacSpeedShop.com

02/18/2026

All set up for .600+ Hyd Roller Cam. Hardened Exhaust Seats. Old School Cool. PontiacSpeedShop.com

How about a little Ram Air 5 fun. Setting up for the final cut on the decks. IAII Block, JE Custom PistonsPontiacSpeedSh...
02/17/2026

How about a little Ram Air 5 fun. Setting up for the final cut on the decks. IAII Block, JE Custom Pistons
PontiacSpeedShop.com

I just don’t get Torque Converters on ice - and I’m a car guy!PontiacSpeedShop.com
02/16/2026

I just don’t get Torque Converters on ice - and I’m a car guy!
PontiacSpeedShop.com

We do so many aluminum heads that it’s great to see a set of good old cast iron Musclecar heads for this ‘68 GTO build. ...
02/16/2026

We do so many aluminum heads that it’s great to see a set of good old cast iron Musclecar heads for this ‘68 GTO build. Hardened seats and dished pistons keep it pump gas friendly!
PontiacSpeedShop.com

Had a little sunshine so we were able to get some paint on a few Injuns.PontiacSpeedShop.com
02/11/2026

Had a little sunshine so we were able to get some paint on a few Injuns.
PontiacSpeedShop.com

02/07/2026

512 CI Super Stroker from High Performance Injuns. 4.185 bore x 4.650 stroke. Offy dual quad with a pair of 600 Holleys, Howard’s Big Daddy Rattler hyd roller cam, PRW valve covers and polished aluminum water pump. Ready to return to their high school days! None of us are getting any younger. What can we build for you?
PontiacSpeedShop.com

02/07/2026

High Performance Injuns Super Stroker 512CI teaser video
PontiacSpeedShop.com

That’s one cool sticker! Sent by Brent William Flynn.
01/26/2026

That’s one cool sticker!
Sent by Brent William Flynn.

01/23/2026
01/22/2026

Check out the PRW Valve Covers, Polished Aluminum high volume water pump and SFI certified damper on this 512 CI Pontiac!
PontiacSpeedShop.com High Performance Injuns

When you go out to eat, tip your waiter or waitress well and give them another tip. The decal that leads them to Pontiac...
01/18/2026

When you go out to eat, tip your waiter or waitress well and give them another tip. The decal that leads them to PontiacSpeedShop.com
Don’t worry, if they don’t already own a Pontiac, secretly everyone wants one! Text 317-671-3669 your name and mailing address to get your free 1”X 4” decals. High Performance Injuns

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1630 E. Northfield Drive , Ste 1100
Brownsburg, IN
46112

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The High Performance Injuns Story

Our Love for Pontiacs started with my first car at age 13, a 1964 Tempest 6 cyl 3 on the tree and by the time I had my license I had traded several cars around - the Tempest for an overheating ‘67 GTO Automatic, then the ‘67 GTO for a 4 Speed ‘66 GTO. I had that car all through High School and raced it regularly at OCIR in California.

After Marine Corp Boot Camp I bought a ‘64 GTO that I still have 38 years later. I also have a 6.00 Tagged 220” Rear Engine Pontiac Powered Dragster and “GoatZilla”, a 6.00 Tagged 2400# ‘64 GTO. These cars are all rolling Dynos used to test, prove and improve everything we are planning to bring to the market.

High Performance Injuns started out selling “Injun Kits” with a small ad in High Performance Pontiac Magazine and quickly grew into a full service “Injun Building Enterprise”.

We have grown to now include the creation of Pontiac Cast and Billet Cylinder Heads with many more upcoming products for Pontiac’s created through years of experience and plenty of “Injunuity!”