From 1984 to 1989 Toysport prepared a Spec-Engine for SCORE / HDRA Toyota private entrants.  The winnings from the Toyota Contingency Program testify to the racing capability of the set-up.  The engine package kit is still available, as complete engines.  This set-up won National Championships for Toyota in Class 7 and Class 7 4WD.  The carbureted engines developed 185-195 HP, but consistently out ran the 239-240 HP Ford engines in the same class.  The secret is in the torquey characteristics of the power band.  The limiting factor of this engine is also its strongest point.  The long stroke limits RPM capability to about 6200 maximum, but the bottom end will take a lot of abuse.  The crankshaft is forged.