Mancini rocker questions...

mopar head said
Probably exactly what you`ll have to do.

Icetech said
K.. so pushrods showed up today and i got home all excited to finally get this together... Mancini sends no info at all with their rockers, not a big deal it seems pretty common sense.. big spacer between the rockers, small shim spacers on the outside of the pairs of rockers.

So i'm pre fitting the rockers to make sure no issues and as soon as i tighten down the old downs the rockers get so tight i can barely move them (This is only tightening using a nut driver for fitting purposes).. Loosen slightly and all is fine, it's not the hold down blocks twisting side to side.. tried moving them around and same issue. 1 or 2 cyls move fine when tight but most are rubbing bad..
Looking for specs the only person i found that mentions side to side play on rockers is moparjoe who likes .016 i have .000..

So.. not sure what to do, i'm 99% sure i got the shims/spaces and hold downs in the right places.. Considered "Clearancing" the hold down blocks but wouldn't get them square enough and that would end badly...

P.S. measured the shims .047-.049 each.. the spacers between the rockers were all matching but i don't recall the exact number at the moment.

Thanks for any help.. praying i don't need to order thinner shims and wait 2 more weeks :(
View attachment 1716138335

I bought a Sears belt sander almost specifically for this job years ago. I’ve showed pictures before how I mark every rocker and every hold down for position. I would remove material from the sides of the hold downs and shim as needed to center up each and every rocker. Only after I was satisfied would I bolt everything down and then measure for pushrod length. Step by step. Caution of course is needed using these sanders.