You can't bolt a torker on a stock engine and expect magic.

Paired with a .500ish cam, 750 carb and 10.5 compression and its one of the best.

I've swapped back to back M1, Torker and TM7 on my 383.

I like the TM7 best but they are all within a tenth.

The NHRA sportsman world champ runs a 340 with a torker.