Yup, I did it. With Rhoades lifters, 10.5:1 compression pistons, 68 340 intake, and Holley 600 vac secondary cam. Daily driver in 68 Barracuda fastback. Ran great and got 17.75 MPG on highway with 2.76 gears. I had to upgrade the heads from stock to 77 360 heads due to too much compression. When I changed heads, I went from 24" of Hg at idle to 22.5" of Hg at idle.
