- Joined
- Aug 14, 2012
- Messages
- 799
- Reaction score
- 3
- Location
- san angelo tx
- My Car
- 73 mach 1 4bb swapped Q code
89 cummins swapped 4x4 f350
96 f350 dually stock
Alright guys here is the issue, I got a nice driver quality 76 charger as payment for rent the other day and it has a slightly built 318 in it that puts out around 250-260 hp. the vacuum secondaries didn't work but it drove nice and stopped very well. Today I put a smaller carb with mechanical secondary ( 750 to a 650) it runs nicer under 3k rpms and now I can't stop to save my life the pedal goes to the floor and wont hold the car still if you go above idle with the brakes held the booster is plumed to the manifold so I didn't mess with that. What is going on here?