Well fiddling around with brake bias, I noticed that I could stall my engine out if I attempted threshold braking. I called Holley and here is what there tech support says is happening
I guess under heavy deceleration, one of the fuel bowls, I forget which one, pushes gas to the wall and up the vent stack. This then falls into the carb and floods it out.
They gave me a couple things to try.
1. make a crossover vent tube
I did this by copying one of their 4WD carbs. I then testing the hard braking again and it might of helped a little, but I was still able to stall the engine.
2. lower float bowl fuel level 1/8"
I have not tried this suggestion yet...I can't figure out how I would know the level has dropped an 1/8" inside the bowl?
Has anyone had this stalling condition under hard acceleration or deceleration? Am I on the right track or are there any other ways to fix this?
thanks for your time
Andy
http://www.cobralads.com

I guess under heavy deceleration, one of the fuel bowls, I forget which one, pushes gas to the wall and up the vent stack. This then falls into the carb and floods it out.
They gave me a couple things to try.
1. make a crossover vent tube
I did this by copying one of their 4WD carbs. I then testing the hard braking again and it might of helped a little, but I was still able to stall the engine.
2. lower float bowl fuel level 1/8"
I have not tried this suggestion yet...I can't figure out how I would know the level has dropped an 1/8" inside the bowl?
Has anyone had this stalling condition under hard acceleration or deceleration? Am I on the right track or are there any other ways to fix this?
thanks for your time
Andy
http://www.cobralads.com