As much as I'd like to have a 350 in there, this 260 runs so well it's in there to stay. I've put about 70,000 miles on it since the rebuild in 1992. I am running Jacobs 8.5mm wires with a Jacobs cap, rotor, coil, and platinum tip plugs. It makes a big difference on how smooth the car runs. Note the red painted handle for the 200R4's dipstick