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yeah not worried about the fuel usage , i wonder what the real world hp is . Seems that older tractors had more power on less hp rating . might just put a small supercharger on it

yeah its on a older mtd garden tractor ....hmmmm maybe i can wedge a 350cid in it

Hello I have a B&S 724cc Intek vertical shaft engine, rated at 25hp. serial; 13 1120 YG 38184 I am looking to gain more power / torque . I use this rider mower for rough grass and areas we dont wish to abuse our other mower on . Do you have a cam / lifters / springs / intake that could help ...