360 saga

If you have a high octane gas available, those low-C pistons gotta go!
Or you could bolt on a closed chamber teener top end and cam, and make a tow-truck engine out of it. :) The teener top end might bring your compression up closer to 8.8 or 9. This would bring your Dcr up around 7.75 and the cylinder pressure up to a tic over 150psi; that should pull pretty good in a tow truck.lol, or a similar low-rpm application. Hyup 150 psi and geared for 20/22 miles per hour per 1000 rpm, that could smoke some tires, awrightee.