Are you talking about the Model Tech Extra 330 .30 sized plane?

If so it will do fine.

I put an OS .46 LA engine into my Model Tech Extra 330 and it does just fine.

It's fairly good with a 10x6 or 10x7 prop.

The thing is a speedster though...

The cowl is quite large and you should have no problems, especially if you mount the engine at the 45 degree head down configuration they use as a default.

If I recall correctly the plane weights about 3.5 lbs and I used standard servos in it, but I MAY have used mini servos for the wings... It's been a while since I put mine together... it's still flying though...

Remember to re-inforce the gear blocks... and go for larger ( much larger ) wheels if you plan on flying off/onto grass.