farmallm46
New User
We have a 46 M with 4" firecraters that we use to compete in the antique stock class pulls in our area. I have searched to try and find the answer to my question but cant find what im looking for. Everyone says to time the motor to 22 degrees at wide open throttle with firecraters but what rpm is wot? The timing advance changes with engine rpm does it not so this doesn't make since to me. If I set my tractor stock rpm at 22degrees at 1650rpm and then increase the rpm to 1750 the total timing at wot will no longer be 22degrees. We run our tractor at 10% over stock. Current rpm at wot is 1750 so what should I set the total timing to? I use a timing advance timing light to set timing.