Wrong heads for a 273

I have run 1.88 intake 340 heads on a 273. Just don't over cam it. You will love it with a TQ. Mock it up and make sure your heads are centered on the bores to give you the most clearance with the intake valves. Mill the heads .040 and .038 on the intake side. That will put you at NHRA min chamber volume of 64.7 cc. Early 273 heads flow about the same as the 587 heads with the 1.78 intake valves. If you look at the 273 potential of what he ran, 10.37 sec at 142.85mph, you should be good either way. I love that dragster! Thanks for posting that article.