What do you think of my build? 318/390

With that 4" stroke, you could actually run a little more cam if you wanted to...unless you have a very efficient exhaust, you may want to consider something in a split pattern...Maybe a Comp XE solid?

JMO though...depends on how much rumpity rump you can live with.

Also use the search function and go through some of the other 390 builds on here...I think it's "rnaz" running a 390 pushing 11s in a plum crazy Dart, I think...sucker sounds damn good though

You should be good for 400/425 though