The thing with the big dog weights is they act roughly 3 grams heavier than they are, so your 55's act like a 58 gram weight..in which case is still probably on the light side. I had 53 gram big dogs in the one we clutched, was spot on stock, once I did air box mod then it would hit the rev limiter anything over 95 and was a slow climb to 99 because of the rev limiter. 55's would've been spot on with that one. I got a set of notched 75 big dogs if u wanna try them lol may need to throw some boost at it tho. I'd maybe give d&d a call and see if they got any used big dogs that would get u closer to where u need to be. The profile compliments the power deliver of the engine so well it'd be a shame to go back to something else. Cat clutches are definitely cheap and won't last as long as a yammi clutch but they operate so smooth and are very quiet compared to the yammi clutches.