Stupid drag racing question, but I'm not proud .....

I personally like the motor plate s over the solid mounts as engine sits lower in the chassis with the solid mounts. I run 1/4 thick industrial rubber between plate to frame and always run a rubber trans mount. cut water pump housing down 1/4 inch for correct pulley alignment and you have a pretty smooth ride .the ss springs compensate for this driver side lift and keep both tires planted equally due to the bias of spring segment locations for each side. I street drive my dart on occasion and get no vibration with 600 plus hp at the rear wheels