Engine speeds up when brake is pushed

Well your having a tuning issue, use a vacume gauge to tune your car, start with adjusting valves if they are adjustable. then set float levels, then tighten idle mixture screws till they stop counting the turns as you go then back them out equal amounts of turns for a "Happy Medium" Now that you have done that hook up a vacume gauge to direct vacume and adjust idle mixture screw till the vacume reading gets higher then match the oter side same amount of turn that you did to the first one to increase the vacume (keep these screws equal amount of turns) when you have achieved your mhighest vacume reading you can proceed to set the timing....I do NOT own a timing light....never have...never will but...I do like them ones with the dial on em....they are neat to see what ya got...I will rev the warmed engine to about 2500 rpm's and adjust the timing by ear listening for the engine to labor then switching the direction I was turning the distributor and turning it ever so slowly listen for the sweet spot where she doesn't have a miss or seem to be laboring. then I will reset the engine idle speed and shut her down.....after about two minutes I will hit the key to start her up and if I hear the starter motor labor I will retard the timing a miniscule amount, restart the engine and run for a little bit and repeat the process till she fires properly...there may be others chime in with diffrent methods....