Quote:
Originally Posted by elmariachi
Of all the crap that worries me, that ain't on the list.
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You gave me something new to worry about (only a little, but still). When I spoke with my builder, I confirmed that it wasn't a problem to run 93 octane unleaded. I assumed that also meant that he put in hardened seats, but I don't remember actually confirming that specifically. I too had NOS MR heads that had never even had valves in them. Now I wonder whether he just shared the opinion of Ernie that concern about unleaded gas on unhardened seats is overrated or whether I have hardened seats.
This may be a dumb rookie question (feel free to give me some sh!t, but I'm still learning), but is there any way to tell without pulling a head? Can I tell from the valves that I have?
EDIT: Oh, the most important part, my builder passed away in January, so I can't call him.
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