95 supreme hesitating

hey guys. my 95 cutlass supreme with the 3.1 is hesitating like when leaving a stop sign. as i give it gas, it waits just a second and then goes. it only seems to do this until it warms up, after which i dont notice any hesitation. do you have any ideas of what the problem is? maybe just need to run some fuel injector cleaner through it? thanks.