So my 1991 Firebird is having issues at times for some reason when I put the key in and start it it’ll crank turn over and then die and then when I take the key out let it sit for less than a minute open my door and wait for the sound And then crank it it turns over. I do have an aftermarket intake but I put back the stock air intake that was on it and the problem still occurs also I do have a rough idle at certain times and it’s feeling a bit luggage I thought it was the distributor cap at first to do with the power issue but I feel like it has something to do with my Ignition All the timing and everything seems to be fine it is spraying gas like it supposed to and I do have spark and good compression I’m not really sure please help