400 build question
I have a 400 block cast number "817" and I was wondering if it would be worth using? I heard that the "509" block would be better. I was thinking about a 377 or 406. It will be going in a 2800lbs S-10, glide, 9" with 4.88 gear and a 32x17.5 tire. I am not too sure about valve train or top end right now, but any suggests would be great. If you need more info please let me know. I am look to run mid 6's in the 1/8. Thanks.