hmm..I've been running a Cometic with OE headbolts for 4 years now and it's still holding..running a MSD380 setup 30/27 psi...but I'm a worried after reading this ???
So are they lifting or what ... ?
ah now, you may be fine, these engines were 440 bhp upwards so a bit more strain over your engine, yours may be still good
ive heard people run them before just not on a big spec build with much success
