The four tracks from two A&M 45s are among the 17 songs on David Marks and the Marksmen 'THE ULTIMATE COLLECTOR'S EDITION 1963-1965' which I ordered from his website many years ago.
Kustom Kar Show, Crusin, Food Fair & Do You Know What Lovers Say are the titles. I do not own the original singles, which I'm certain are quite scarce. Not sure of Herb's involvement beyond the track mentioned earlier
The other band members were Gene Fetco, Denny Murray, Bill Frenkle and Mark Groseclose (who has some co-writing credits on the album).