I wrote you a great response on the last board before it died. I recall you were asking about how to read cam specs. Since you are going with headera, I would recomend the TR 220 with the 114 LSA. I do not recall lift specs on that cam. Are you planning on springs and pushrods? If not comp offers custom grinds.
I selected a comp cam. My specs are 216/216 .577/.577 114 LSA. I also got 918 springs and hardened pushrods to hold it together. I chose the short duration to improve the lower/midrange powerpand. I will still get more power in the upper band but not as much as the bigger cams would offer. The springs and rods will push my redline up as well.
Overall I felt this was my best compromise. Given my mod plans. This will work nicely with my SS3600. If I went with a bigger cam I would end up trading off low end power and drivability.
1991 Formula Firebird
2001 LS1/4L60E, 3.23 posi rear
Comp XE 216/216 .577/.577 114LSA cam
918 Springs, hardened pushrods
Yank SS3600 torque converter
PCM reprogrammed for cam and converter
3" exhaust
BRM Adjustable torque arm, tubular read LCAs
Spohn Adjustable panhard bar, front steering brace
Spohn Subframe Connectors
4th Gen style wheels
Bilsteins sport struts and shocks