I got a hold of Darrell and some of the other ford guru's and they have all seen that in there blocks as well. I was a little worried there!
I think mines got the same thing.
410W/YS-i/10 lbs Boost/Pump Gas
9.90 @ 140
Its a way of lightening the block a little, just put some holes in it. Must be how that blown 363 is running low 9's.
Originally Posted by BOSS LX
I got to take some this weekend if the weather clears up, thanks for the reminder. I was hoping it would stay nice out a little longer so I could drive down to Culver's or something before hanging it up.