You've got 67.5 amps' worth of fuses in that block already- - - - -how big is the wire supplying it, and where is it connected? I'd think a #6 wire connected directly to the battery with a fusible link in it would be needed to supply what's already there.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!