Hey Ray,
I don't know how heavy of a vehicle you have, But both Jimmy Smith and i have had good luck with bullit cams and for the small cu.in. engines we run anywhere between .625 and .640 lift ground on 106 lobe ctrs. and installed at 102. In fact Jimmy runs a 355 flattop motor with hilborn stacks that runs 6.40's in a 2920lb with driver Camero. I run a 377" with a toilet bowl in my Malibu that weighs 3250lbs with driver and it will run 6.50's. now in my case the cam is too big .660 lift, and kills the torque a bit. I have a .624/.624X106 lobe ctrs. i'm sure would drop me about a tenth, but i'm getting ready to drop in my 434, so i don't want make the change.
I don't know if they grind a hydraulic roller that big or not since i've never run them, also i don't know if the low spring pressure will allow you to run to 7200 RPM's that you need to run to make a small engine perform at it's best.
Here is a cam listed by Ultadyne (owned by bullit) that will fit your application perfectly.
http://cgi.ebay.com/ebaymotors/Chevy...=p4506.c0.m245
JMO
Zip.