[Dominik]

Paul,

aluminum engines are suitable for racing.

SB vs. BB:
The tires dictate the torque that can be delivered to the tarmac.

A reason why small blocks came pretty close to the big block performance numbers may be the lack of high-end development for the big-blocks in the last 20+ years.

Who is racing them these days? Offshore boats, vintage Can-Am cars. Who else?

A big-block Cobra is not 175 lbs too heavy in the front. That's overall. Weight distribution is still 50/50. Should be.

As mentioned: weight could be taken off the front (car).
Otherwise you loose during braking and in the corners.
My car weighs 1950 lbs. - with big-block.

The tires couldn't handle it - even on the straights.

Thanks for letting me join your discussion.

Dominik