Check out the December issue of MUSTANGS & FORDS magazine. They have a good article on the 347 stroker motor. I didn't like the
oil ring situation with the 347 piston so I went with the 331 cid. But as the article says, there are ways around this (h-beam rod$) My engine builder says it should put out 330 to 350 reliable horsepower. 10:1 alum BRODIX heads, B303 cam, 1.7 roller rockers, Performer RPM & EDELBROCK 650 carb.....MH