Dan,
I'm not going to get into the war of good gas/bad gas, but that looks like a material failure. Caused by detonation, sticky valve guides, water quenched or what not. I would contact the valve company and see if they would like to look at it for inspection purposes and material analysis.

BTW: This is cool to hear, as you probably found out, no one (privately) has anything like this around. Sure it opened your eyes a lot. Is it possible, it has fooled them some too ? This is round table talk for discussion. Not jabbing.

I did , they said they`ve never seen a part failure like that.. I take that with a grain of salt.
At the end of the day doesn`t really matter . If I ran a 100 miles without issues that weekend , got that crap gas, 10 minutes later boom. make your own conclusions.

Sweet , I`ll add water instead of boostane next time. You just saved me a bunch of money .

I looked at a ton of videos on electronic octane testers and they all seemed to be losers . The only accurate way to test octane rating is a Combustion Fuel Research (CFR) engine (also known as a knock engine).

Can the Holley do knock retard?

I have a customers sled outside with 4 yr old fuel. Anybody want 8 gallons of grade A your motor won’t make it 1 mile down the lake crap ? Come get it, it’s free. The fuel in it is brutal !

Give your motor what it want’s. Are you listening “ -Darin Morgan

Thinking of it, i’ll put a sample in a jar in the next day or two. Bet you it will look like iseedeadpeople’s.

Wish there was an app where you guys could smell it thru your phones. Lol. It’s horrible.

The internet dudes says it`s fine, bad fuel does not cause any issues. SEND IT!

Of course, already hooked up.
I have a stand alone system but if Im not watching it`s useless as you can see.
I might have it pull a little timing but definitely a warning light once thats dialed in .