I have only used two but have seen the same

Even worse is the Nostaligia Plus for SBFs that ticks like a loose flat tappet

All three ran well, but I wouldn't have kept it in my own vehicle because of the noise


---------------------------------
- 70 Fastback Mustang, 489 cid FE, Victor, SEFI, TKO-600 5 speed, 4.11 9 inch.
- 71 F100 shortbed 4x4, (in the works) 445 cid FE, headers, RPM intake, 3310, 270H, 4 speed