My 88 305 TPI (all stock) has started cranking along time after sitting for a few hours. The temp gauge reads around 120-130 when I'm trying to start it. It cranks and cranks and then starts and acts like it's flooded for a few seconds and then it runs fine. Is this the sign of a leaking injector? On cold starts, it starts immediately but stumbles for a second or two and then idles fine. There are no codes. If I shut it off for a few minutes and start it up, everything is normal.

I also wonder if this is related to my off-idle hesitation I get when the car gets over 200 degrees.

Thanks!

 

I'd put my money on leaking injector[s] or a bad FPR. I had a very similiar problem and my injectors were leaking after the engine was off flooding it.