Definitely fuel. I heard a carb back fire. Sounds like secondaries. Think'n the air flap is opening to slow or to fast vs the trottle plate. Adjust the air flap "spring tension" and see what happens.
Originally Posted By 68 Firebird400
I am uploading one now where I start out in 1st gear, did a slight burn out, and you will see how the car falls flat and then recovers. This was the first time it ever did it in first gear and was the only time it did it tonight...
