sounds pretty mean, should hold together for 6500-rpm, but with those gears it may not pull that high in 4th gear.

 

thats ok it will rarely see the strip,maybe a couple times a year.If i can find a 5 or 6 speed cheap I will put the 3.73 back in the 12 bolt.Could I use 1.6 rockers for more power or should i stick with 1.5's?

 

That's a good combo. One suggestion is to go with the 180cc heads. It'll make more usable power in the band it will be driven in the most. There's no need to go with 1.6 rockers on a daily driver with decent lift already. Accelerated valve guide wear and spring wear are the main draw backs. Just my $0.02

 

Will the 195's hurt the driveability or should I call and see if I can have my order changed to the 180's?Anyone have a clue what my end compression ratio will be?Basically going from a .051gasket to a .015 gasket and from 58cc chambers to 68cc chambers.If the compression is too low should I have the heads milled down to increase compression.I'd like to stay around 10:1

 

sounds like a good combo....lift seems a little high for the combo, but maybe not.....your going a little more duration which would increase your C/R from a stock zz4, but the AFR's have a bigger cc chamber which will lower the C/R, and since the zz4 is a 10:1 engine, I figure after all that you will be around 9.8:1.
Remember if you mill the heads its going to change the flow so make sure you have a good head guy do all the extras too.

 

Will the 195's hurt the driveability or should I call and see if I can have my order changed to the 180's?Anyone have a clue what my end compression ratio will be?Basically going from a .051gasket to a .015 gasket and from 58cc chambers to 68cc chambers.If the compression is too low should I have the heads milled down to increase compression.I'd like to stay around 10:1

The 195cc heads are going to want RPM to come alive in a 350. They might produce a little more power above 6000rpm but can cost a lot of torque/power below 4000rpm as compared to the 180cc heads. It'll be a little lazy. You'll be happier with the smaller heads with your gearing. Don't overkill it. Chevyguy is dead on with the CR of approx. 9.8:1 with the 68cc chambers and the .015" gasket. Plenty enough CR for the cam chosen. In a heavy vehicle such as yours and 3.31 gears in a daily driver, you need a stump puller.