i jus bought a mbx5 and i need an engine for it, so while i was lookin for one at rcmushroom, i came across a novamax buggy 8 port 421 style .21 engine for only $280!!?! Is this a good engine for the price? i mean, is there something i should know about it? i'm trying to keep the cost at or under $300.

My guess is that it is just a regular 421B without the Fantini mods done to it. Still, it's $10 less than a Nova 421B. Sounds like a good deal to me.

Go with Nova 421B easy to get the parts of this engine.