I've found a set of iron W2 non-roller rockers for a very attractive price that should work nicely with the Econo heads I'm looking at getting. Of course the price is attractive because the set is missing one of the intake rockers, a Right I think. I'm starting to look for the unicorn single right iron rocker for sale at a reasonable price. But I've seen single roller rockers here and there before on ebay. Is there any reason I can't run a one roller tip rocker and the rest solid iron if I can find a single? I'd love to just dump $1100+ into a new set of roller rockers but my project becomes much more viable if I spend the ~$900 difference elsewhere.