engine change


http://www.summitracing.com/parts/cc...make/chevrolet
And, are these the heads in question?
http://www.summitracing.com/parts/ed...make/chevrolet
If so, you'll be able to see by reading the product descriptions, that the valve springs in the e-street heads are supposed to be good up to .550" of valve lift, and your cam falls well within that range. I think the springs that are already in the e-street heads will work just fine.
Scott


