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Back fire through intake when floored

Hey crew! Just finished putting together my gmt400 with Vortec Heads and Summit 8000 cam. Runs pretty awesome except I have a little hiccup. When the truck is in motion and I floor it, the RPM will drop and there is a back fire through the intake. I just replaced all the plug wires, spark...
- Connorpod
- Thread
- Apr 15, 2024
- Replies: 13
- Forum: Engine Performance + Maintenance
The "Mayne Queen"

Hey Obs truck lovers, Welcome to my build thread! This is the story of the Mayne Queen. A truck that previously resided in on Mayne island, one of the small islands of the West Coast of BC. This pick up truck is a 1995 Chevrolet k2500 that was purchased by my grandpa "Buppy" in the fall of 1999...
- Connorpod
- Thread
- Nov 27, 2023
- Replies: 22
- Forum: Street Build Threads
Vortec Head and Roller conversion: TBI Bore

Hey Crew, I have a 1995 Chevy k2500 with a 5.7 tbi. So far I have truck headers, Exhaust, CAI and Fuel Pressure bumped to 14psi with Ultimate TBI. I am starting a build and have picked up some Junkyard Vortec Heads. If the heads come back from the shop crack free, I plan to swap out the heads...
- Connorpod
- Thread
- Nov 23, 2023
- Replies: 7
- Forum: Engine Performance + Maintenance
No DRLs

Hey Everyone! I have a 1995 Gmt400 (Canadian Model) With DRL's. The DRL light went out the other day and was researching what is needed to replace the DRL's the forum suggested replacing the DRL module. I back ordered it in January. The problem is, I can't seem to find it's location under the...
- Connorpod
- Thread
- Mar 2, 2023
- Replies: 4
- Forum: Audio + Electronics