You’re right. But by simply removing the catalytic converter installing cheap headers and dual exhaust you can pick up 50 HP on a car like this. Still not enough but not bad without breaking a gasket on the engine. Advancing the timing and getting secondary flap on the Q-Jet properly set adds a little more power. The brutal torque of the 455 is still there.
True...not enough initial timing and they were tuned lean. Fix those two things get dual exh with modern cats they wake up. Probably had a 2.xx gear ratio so slow to get to speed good on the hwy. Love those big barges, grew up in the back seat of many
@@gordocarbo I’d just get rid of the cats. I may be wrong but I believe when it comes to catalytic converters, you have to replace it with the exact same type that was installed at the factory. Or it has to have EPA certification for use on that exact combination of engine and car. Don’t think many manufacturers of catalytic converters are going to foot the bill to get EPA certification for a 76 GP with a 455.
My first car was a black on black, console shift 76 GP. Looked just like this one only mine had a red pinstripe. Mine also had a 400. Is this one for sale?
Wow, absolutely stunning! LOVE the 73-77 body style!
don't understand why they don't get more love
Impossible to find most were junked yrs ago
Sweet!
Grew up in Impalas....the Pontiac buick and olds were so much nicer with better styling.
My dream car❤
Take good care of this baby!
Is this car for sale?
Sold last year 42k
Your car is pristine. I love the colonnade cars of the '70s. That 455 would probably sing with some stuff disconnected
Smog pumps dont really rob power its the old pellet style catalytic converters that did
We all threw them out in the 80s though thinking it would help
One of my dream cars
'waterfall' grille
The '76 Pontiac 455s would barely get out of their own way. The EPA ruined thm
You’re right. But by simply removing the catalytic converter installing cheap headers and dual exhaust you can pick up 50 HP on a car like this. Still not enough but not bad without breaking a gasket on the engine. Advancing the timing and getting secondary flap on the Q-Jet properly set adds a little more power. The brutal torque of the 455 is still there.
@@mikee2923 Well said!
True...not enough initial timing and they were tuned lean. Fix those two things get dual exh with modern cats they wake up. Probably had a 2.xx gear ratio so slow to get to speed good on the hwy. Love those big barges, grew up in the back seat of many
@@gordocarbo I’d just get rid of the cats. I may be wrong but I believe when it comes to catalytic converters, you have to replace it with the exact same type that was installed at the factory. Or it has to have EPA certification for use on that exact combination of engine and car. Don’t think many manufacturers of catalytic converters are going to foot the bill to get EPA certification for a 76 GP with a 455.
My first car was a black on black, console shift 76 GP. Looked just like this one only mine had a red pinstripe. Mine also had a 400.
Is this one for sale?
I just sold it 42k
@@charlesherman4890 WOw!! Cant even get half that for a 100k frame off 67 Camino custom .WHat venue did you sell it on? You did well buddy
Oh baby if I had the money, I would have you and love you and treat like the queen that you are 😁😁
YOu and me both. He sold it for 42k!!!
Hate to sell my old classic but maybe its time. That could rid me of debt and relocate me to a better area .