'Cars' magazine had an article on the '64 R4 convertible, still wearing it's #3, that they said was clocked at 146 at Bonneville. Supposedly the car came straight from Bonneville to the 'Cars' editors for the road test. Serial number of this car was 64V1003. So, false, it was #3.
And, by the way, Andy G. set 12 records in this car, but many many more were set in this same car by Vince G. and Barbra Nieland. The January 1964 Hot Rod Magazine 'Bonneville Wrap-up' article has a lot of info on the records set by this car. This same article has a cool pic of the car at speed: