Hotrod6, I was really careful on assembly making sure my manifolds were true, using collars and hightemp rtv along with torque wrench and sequence. I know I do have some wear on the throttle shaft, but could that minor leak cause the need for a little choke? How about the subtle hunting the distributor does at idle? I would think the higher idle is due in part to a tight new engine. I'm going to go ahead and set timing to 8 btdc Wrenchbender and let all know how it works. Thanks.