power DRUM brake conversion (with a dual master cylinder)

[jocko]

Ok,
Have some dumb questions because I'm a brake idiot.
I have a 75 Imp Booster, 67 C10 Dual Res Master Cyl, and a headache.

Couple questions - if I were to go from my current stock single reservoir master cylinder (non-power) to the dual res 67 C10 master cylinder (non-power), I'd need NO adjustment to the pushrod - did all the measure ments, it'd be good to go.

But, If I wanted to add in the power booster, using Captain Fab's slick booster bracket, I have a few dumb questions...

There are 2 pushrods - the normal pushrod from the brake pedal that would normally go into the back of the master cylinder on a non-power setup, and then there's the little interim pushrod between the booster and the master.

So, 2 problems.
1) between booster and master, how much slop should there be between the interim pushrod and seating in the master cylinder pushrod? (Right now, I have TONS - look at the pics, the interim pushrod barely peeks out of the booster, yet it should insert almost 1+7/8" into the master cyl.)

2) in a "normal" setup - does the eyelet on the pushrod that goes into the back of the booster connect directly to the brake pedal? (in other words, the current brake pushrod is simply a rounded off straight rod that is currently hangin in through my firewall, but unless the answer is to simply cut the eyelet pushrod off and weld it to the brake pushrod, with an adjustable mechanism on it, then ok, I can do that. But the eyelet"ed" rod hangin out the back of the booster is not removeable.... So, is it a cut and paste (weld) sorta thing? Or could I just thread it if it's the right size and screw it into a junction on my prake pedal.

Bottom line, trying to figure out if I have a workable combo - it appears I need to lengthen my intermediate push rod (front of booster to master cylinder) about 1+7/8" and it also appears I need to cut and weld or cut and thread, etc the rod hanging out the back of the booster to make it compatible with the current brake pedal pushrod.

Not real familiar with the "power" part of power brakes. I THINK I know what I have to do, but the mismatch between booster output toward the firewall and brake pedal pushrod has me scratchin my head. If it were just too short or too long, then it'd make sense, but it's not even the same sorto thing. Not sure how I could even connect it since it isn't removeable from the booster....

Maybe I'll just put in the dual MC, plumb the lines, and call it a day.
Thanks for your help.