You can still start it with a box. If you have a box look into a engine thats not a pull start. The pull start robs hp from the engine. Look into the OS tz or RB v12 engine, both are great race engines and will push your gt2 on the track very well.
Exactly the pull start can take away between 2000 & 5000 RPM
OSMG1986 is a great mill
OSMG1989 is the same thing with less total output[
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