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Hi Chris, I think that factory fitted .28 with pull start is race legal. However, there are few other things to consider: 1. .28 will be a bit stronger, bot not having reference you will not tell the difference. 2. Stronger engine = more crashes if you do not have experience 3. .28 takes more fuel than .21 = more pit stops during race 4. Any REAL racing .21 will beat crap out of .28 pull start Get "Black" and when you gain some experience, you can buy a proper engine. |