I have a set of DSPC cnc 5.3 heads. On the site (DSPC) it says the CC is 61.1. Now if I have those milled ~0.021 it would bring the CC down to 58.0 if I did the math correct. Now will this be to much for a daily driver and still work good non boosted on pump gas? also I'm running the HT1 cam (214/218 .559/.562 111) and the stock 1.7 rocker ratio. will I have any clearance issues?

I'm just trying for a little more low end.

mods now are
HT1
DSPC 5.3 heads
4.88 gears
4L80e
headers