1998 190 dc with a 1998 mercury 200efi with 8” detailed jack plate. Prop to pad is 3 1/2. Prop is a 25 tempest plus, just worked and like new with 3 large pvs plugs. Yesterday the boat would take a long time to get on plane. I’m talking 10-12 seconds. Couple times, I let off and tried a second time to get on plane. No water in the live well and 3/4 tank of fuel. Not sure if I carry a heavy load. I cleaned out the boat and weighed all the tackle, rods, etc and it was around 170lbs. I have one 31 series and two 24 trolling motor batteries. Should I try different pvs plugs? Thanks