a tighter lsa number will have more overlap (rougher idle, less vacuum) than a wider lsa number. a 110lsa seems to be the accepted sweet spot for most performance cams but that doesn't mean it's ideal for all situations. a lot of variables here and being a street build some compromise will probably have to be done. personally i don't like "hot" cams for street use (they can be a nuisance) but some folks love'em. i can try to post some engle blue sheet profiles if needed. one thing for sure about engles is don't try to do a direct comparison with a comp cams grind.