i got to chime in on this one.... ditto to mbr 44, we had 1980 tx and txc 440 and 340, raced the hell out of them til we swapped motors and i got beat by my own motor....we raced the hell out of them. we even blew a piston in the 340 and did not know what the rings were for so we put it in without them so we could ride, it never did run the same. in the mud of spring we ran the 74 evinrude 440's because they had boggies that would not plug up with mud.....good times
07 IQR
1200cc Power Addiction