1966 Chevelle : gas smell and poor running
I’m running a66 chevelle w/ 383 stroker with a MSD atomic EFI. Starts great. Runs like a champ... until on the road for around an hour. Last two times, noticed a slight odor of raw gas right around the 50 mile mark. Temp around 190 & when I try to stab the throttle, I instantly loose power. Have to “feather” to maintain RPM’s. Each time I try to get on it, it sputters and doesn’t respond. It appears to only happen under load. (Works fine in neutral and park) After shutting er off and letting her rest for about an hour, temp drops below 150, problem is resolved. Any ideas?