Roller Rockers

I'm under the impression that this is not a racing engine or anything super-high-performance. So, honestly, doing the geometry correction seems like going overboard for this one (to me). But he can if he wants so spend the extra $$. Engines have been running hard and pretty well without it for a long, long time, and IMHO, .474" lift is in the 'questionable zone' of it being worth the $$. He is not going to gain all that much lift back with that level of lift; and, it will just effect the high end of the rev range, not the cruising operation, which sounds like 98% of this engine's operation.