The most members online in one day was 1, 12-31-1969.
1958 delivery, 1961BelAir427, 409 Chevy Performance, 409Biscayne, 51 Merc., 55p409, 567trishop, 61belairbubbletop, 62impala409, 62sedan, 63z11, 64ss409, AZ409, Bam59, BARRYS770, bg64ss409, blown 409, bluescreamer, bobs409, BobsBB, Bomar, boxerdog, Brian Thompson, bubbletop1961, carlalique, charliedents, cheap1, chevy man, chevymusclecars, chevytaylor, chris409, Dan Hunt, DaveFoster, dgwar, Dick MacKenzie, dlgroh, Dond409, dq409, droptop62, fastfreds, fatride, fattydigs409s, Floyd Horton, Frank Kunkel, gearhead409, Geary Trussell, GLHS60, goat boy, goflydon, Gravy 62, gwagon, hogmotors, Hoptup32, huug, jester, JimKwiatkowski, jim_ss409, jmill838, Johan, johnnyrod, KEN SPANGLER, kz098123, lnirenberg, LongIsland63SS409, mac1, No409, Nuts, oil4kids, Old School, oldskydog, PAINTJOHN1, Parts, petepedlar, Phil Reed, pvs409, quik9r, raymar58454, real61ss, region rat, rh4414, Richard/SIA, rocketman, Rodder29, rogersimpala, Ronnie Russell, rstreet, Rusty Everitt, Silent Sam, Skip FIx, star, Swiss Impala, Tic's60, Tom Kochtanek, TomO, Toms63SSQB, TONY0707, ttjbarley, vortec710, W Head, waddict, walkerheaders, warreng409, William, wldavis, yellow wagon

The most posters in one day was 1, 12-31-1969.
AZ409, Bomar, Brian Thompson, charliedents, chevymusclecars, Dick MacKenzie, dq409, fatride, gearhead409, Gravy 62, hogmotors, huug, oldskydog, petepedlar, raymar58454, Ronnie Russell, Tic's60, Tom Kochtanek, Toms63SSQB, TONY0707, vortec710, W Head

SS425HP (68)