Racing engine is older style bug....

What do you guys think of putting a racing engine in a older style bug...

My friend classified it like this using the alphabet "a" being the worse and "Z" being the best

the engine right now is like a "C" and the one that might be put in is like a "W"

the engine is in the back...

someone said it would flip itself and i said it wouldnt if you had a couple sandbag in the front

What do you guys think??

Thanks
Greg