Mine is in an E Body and not an A Body, but Indy does make a shock tower clearance passenger side rocker cover. This may or may not help in an A Body. I have never done it myself. I am able to remove the cover without any mods to the shock tower and in the factory mounting position even though front and mid plates are added. Hard to tell, but If you look closely there is a relief in the outside of the cover that does not interfere with any valve train internally.

rsz_20160414_201144.jpgIMG_8664.jpg

1963 Belvedere 440 Max Wedge Tribute
1970 Charger R/T S.E. 440 Six Pack
1970 Challenger R/T, 528 Hemi
1970 Charger 500 S.E. 440 4 BBL
1970 Plymouth Road Runner 383
1974 Chrysler New Yorker 440
1996 2500 RAM 488 V-10 4X4
2004 3500 Dually Cummins 4x4
2012 Challenger R/T Classic.