350 "puttering" noise ??

[83cut350chev]

i have an 83 cutlass supreme with a 350 chevy 4bolt and a 700R trans.
after the engine gets warm it starts making a puttering noise...its not a consistent noise its like every 5-6 seconds
im thinking maybe a valve is stuck open or 😢 ...a camshaft

has this happened to anybody else?

 

[skife]

dose it do it always or just sometimes?

is it a miss?
if its missing check your fuel and spark.

also, what cam is in the motor?