The open is 2400 w/50 lbs. mounted in front of the motor plate (rear)... 6" motor set-back. Must run a 1.250 restrictor plate supplied by the track.

The 362 'spec' engine is 2300 lbs. and 10" set-back. No port/polish in 2018.

The all-iron job is basically an IMCA mod motor... 2300 lbs./10" set-back.

The 370" iron block/alloy head is 2300 lbs. w/10" set-back. Must add 50 lbs. in front of the motor plate.

Overall I'd say the open jobs are the fastest despite the plate.

I have an older (OK real old) chassis and, with my fat a** in the car, I will likely not have to worry about making weight. The cars not a lead sled... just don't have the real new stuff. That's ok with me as I don't have any $$$, either.