The FP was a very nice inexpensive sport engine. The LA on the other hand is just inexpensive,....... I don't know what OS hoped to gain by replacing the FP with the LA engine line. Oh well...........


Hey avanstory2000, It's going to be tough to open up the venturi in that steel barrel. A .46la or .40fp carb may be a better choice if you can get one. Experimenting with several apc props may give you the best gains in your quest for speed with this engine.

Good luck