I'd like to not touch the block itself, so if for whatever reason I want to go back to original I can, especially since it took me forever to find a date correct A body 383. Past that I don't really have any restrictions. His chevelle makes about 550-600 horsepower, not sure torque, I could find out if you wanted. And ultimately I'd like to go as fast as I can, but, I'd rather focus on the 0-60 time over the high end speed if that makes sense. Thanks.
