273 Freshen...pic

I liked the use of the Cometics. I wouldn't build a serious 273 or 318 without them now. I think I would have liked to see good pistons and the bores fixed. But I think you're right. With the homework youve done and the steps taken I don't think 325 is a bad estimate at all. All depends on the cam... What's the duration and LSA on it?