[decooney]

IMO - affordable 390s are great in Cobras with stock crank, etc. I've ran 428s in my Cobras. My two good friends runs 390s. I have more torque and it sounds a little deeper than their milder 390s, but their cars also sound really cool when they wind it up. Their cars are fun to drive and sometimes I prefer the feel and sound of the shorter stroke 390. Smooth and fun powerband too. I don't think you can lose with a 390 if you can find a good block/crank to start with. Plenty of HP to be had with a 390 and ported Edelbrock heads/intake, etc. Go for it.