Well, lets back up the bus.
Firstly, what car,year and trans
What carb. What intake. What bracket and cable?
When did this start?
Was it fine before the swap?
Was anything else done at the same time?
1973 Duster, 904 tranny, 318, Holley 750 (i know it's too big) on a Edelbrock Performer intake, stock bracket and cable. The brakes have never been "awesome" but this happened after the swap.