I put in Hella H4s as well. Mine are E-codes, which means they have an intense beam (even low) but a very sharp cutoff, and a blip towards the upper right for illuminating signs. Absolute night and day (pun intended) compared to the sealed beam. An added bonus with the ones I got is they have an integrated low wattage city light, which is wired to my ACC circuit, as my DRL. They were pricey: I got em locally for 69.95 each, plus the bulbs ($5 ea). But well worth it, IMHO.

Phil