Rhoads lifters....

People hate them,some like them.Ran a 408 Chevy rat.Of course,I picked the biggest,cheapest cam I could find.Scummit/Crane 296/306 advertised.114 l/c 238/248 @ .050.Well,it idled @ 4" at idled ,fouled out plugs.My engine guy,shook his head. Said curve the distributor,slap these in.Listined ,foe once.Vacuum went to 12",cranked like hell.Neat stuff.Any responses,would be appreciated.