well my 1989 cmamaro RS 305 TBI dies onme sometimes when i am on a light and also wen i start my car it is cold and it seems to run better wen its cold than wen it gets warm it could also turn off when i power brake in my car which is hold the brake and the gs and then let go of the brake it sometimes dies like thath too the RPM's seeem to move alot too up ansd down what can it be anyhelp please

 

my god that was hard to read...


Is it throwing any codes? have you even checked for codes?

Check around for loose/broken vac lines...