[Tigers] Engine help, 302

[Gyroplanes at aol.com]

Hi All,
My rebuild was on hold for a month or so. I had to make the "big" camshaft  
decision.
 
This is not my first engine build, but it is the first in a while, so I  
read a lot and got more confused with each read. I have also called several 
tech  lines.
 
I have a 1985 roller cam 302. It has stock fulcrum rockers (not rail  type) 
and has pushrod guide plates.
 
A)  I splurged for a set of Edelbrock 60229 Performer aluminum  heads.
 
B) Edelbrock Performer 2121 Intake manifold.
 
C) Holley 0-1850 600CFM carb
 
D) I bought a Ford Motorsports  M-6250-B303 camshaft
 
E) Ford Motorsports M-6565-L302 pushrods
 
(on engine teardown, I found the engine has what appears to be a Edelbrock  
2121 cam (per end markings)
 
1) I was told I can re-use my roller lifters, they are low miles since new. 
 Your thoughts?
 
2) I read that the "stock" timing chain and gears are retarded for  
pollution control. My chain and gears are a double row set with E3AE-A3A on the  
gear. Any thoughts?
 
3) The replacement FMS push rods do NOT have the "collars" the originals  
did. The collars look like a band of metal about 1/3rd the way up (or down) 
the  PRT. I was told these are to protect against valve float? Ideas?
 
Thanks in advance,
Tom  Milton
Lansing, IL.
1964 Tiger  project
B382000257