Add line 1-A, with the stock government designed cams, the extra 39 CC's won't do anything useful anyway.

You are on the right track. It doesn't matter how big the engine is if it can't breath, cubic inches of displacement only count if you are getting a large enough volume of air in and out of the engine.

Let's hope there's intelligent life somewhere in space 'cause it's buggar all down here. -- Monte Python