OEM? Never saw a set "blow"..... Unless youre having a back firing issue. Lube with silicone cream. Install. Good for 7-10 years. Unless its a 2006 xl which had a one year only intake gasket with issues.
You hope.(overtightening)they don't like me to post this, but`
try take the carb off
haVE A PARTNER hold the intake level
butter-lube (lightly) the "o" rings with RTV
tighten the clamps, but don't overtighten.
let it dry overnight
any excess thatt balls up will go out the exhaust.
i did this in '75 on a FXE and never had a intake problem again
You need to cure intake backfiring. This will happen no matter how good the gaskets are.thanks for the insight. Dave63, yes OEM, and yes some backfire. its been one year since we put new re-man motor in, also has highway cam in it.