REMFLEX GASKETS BLOW OUT

In 3 years I have had 2 blow out on number 7 cyl I was in first gear and stood on it I got my new 650 holley on ,that shure woke it up for sure,any how by the time I let off bang another blow out.i do keep an eye on the header bolts.dont who why this is happened.thease are old hookers made well back in the day.
Use the felpro header gaskets. Jmo
Edelbrocks are decent for a couple years too. Remember the days when the gaskets held for a decade?