Well on Friday afternoon I decided to tackle the job of changing to throttle bodies on the plus 4. The kit I had was a complete kit built by OMEX and ordered through Williams. Very impressed by the completeness of the kit and the specialised wiring harness for the Morgan +4. The only thing lacking was a detailed fitting instruction, they were supplied, but just did not provide enough photos and explanations. With a couple of phone calls to Gambulunga and OMEX support and a few more texts and emails from Peter we got there in the end. Finished the job on Saturday afternoon, I guess a total of about 8 hours in all. Had the kit included real bolts instead of Allen key heads I could have saved an hour at least. The one job that took time was connecting the one wire to the original harness under the dash, the +4 is lower than the 4/4 and a bugger to get under especially with a mending new knee. At 4pm I turned the ignition and it started and idled straight away. Went for a quick run and yes it has more power, much more don't know. It does sound a bit growlier and I love it.