No other input needed STS D30M all the way. Have one in my Revo and its an absolute
animal, and is easy on fuel for an engine of this displacement. One thing it takes at least a
gallon of easy running before you can race tune the carb and run sustained full throttle
blasts. You will need to pull the head shims used for break in from the factory after the
one gallon break in period. With this engine run one silver shim for 30% and either one silver
or copper with 25%. This engine is designed for 30% and the matching STS tuned pipe
because of its agressive port timing.

If you are not smelling nitro fumes and listening to the sweet song your not LIVING !!