Hey Gang!

I am building a 4* 40 and need to decide on the engine position - upright, inverted, or side mounted. This is my second kit built plane. I would definately still consider myself a beginner.

Should I just go upright and save the fancy stuff for another kit? or is it really no big deal to change the engine position. It certainly looks better side mounted but I don't want to get in over my head if it could change the peformance of the plane or engine.

Pros and Cons from anyone with knowledge would be great!

Thanks.