Don't try to run dual fuel with a Rochester, accel pumps suffer and gasket dry out and leak. Holley is a better bet. Sounds like you've decided to ditch the gas and if so the Rochester will run your stroker as well on a tidy street engine. If your going to up the ante on a stroker go a larger holley. Holleys aren't the best for smooth idle and fuel economy but work well on cammed up engines.