Hi all, im just starting out with the big birds, and i want to go gas. I have a limited budget so i was woundering if a chainsaw motor would be the best way to keep it cheap? i have access to a good range of tools and im good with motors so the work doesn't scare me...lol. so i have come across a cheap very good running old 009l stihl chainsaw motor.

here is its specs:
009 L Chain Saw

DISPLACEMENT
40.8 cc (2.49 cu. in.)

ENGINE POWER
1.5 kW (2.0 bhp)

WEIGHT
4.1 kg (9.0 lbs.)

what size aerobatic model do you guys think ill be able to stick this in......just so you know i dont want to do hovering, i just want nice scale speeds with enough for good climbs and some power for if i get in trouble. if a model is built for a 50cc will i have enough power?
O yes and also the magneto is on the back of the motor is this a problem??? i dont really want electric ignition if i can get away with it.