I've used 3 of the cheaper Summit brands. Never had a problem. Maybe I'm just lucky. Don't know.
Just curious. Have you guys had problems with them and/or know of others who have had problems ?
I have actually never heard of any.
Obviously, you'd expect some of the much higher priced models to be better.
If I really wanted to find the best, I'd probably contact some Pontiac class racers & see what their experience is.
Norman Warling races, along with his brother. And he's neighbors with Scott Burton. Norman is a member here, who posts occasionally. I'd probably PM him & find out what those guys have used on their high compression Stock & SS engines.