OK, I feel like a noob asking this, but I have searched and I don't have the warm and fuzzy feeling from the answers I have found.
I have a 353 '08 with 1.5 gal through it. I have only been able to run it two weekends so far this season and I'm having a weird problem. What should the space be in the chamber at TDC for 25% fuel?
The issue is that it runs like a champ good top end power (@220 F), low end is good (now hesitation after the 5 - 6 sec. idle then full throttle), blows good smoke, after a 5min warm up & 5 min run it comes in and the idle drops W/O high pinging, BUT it won't idle more than 6 - 7 sec. before dieing.
Tried raising the idle, no luck. I'm going to rebuild the carb this week.

Thanks for any helpful advice in advance!