did you just buy the one size tool Cab? i have a stock piston 383 with eheads that i changed directions on and would like to put a bigger cam in. unfortunately it's completely assembled and i'm probably too lazy to pull the front and heads to notch the pistons. it would only need a couple tiny eyebrows to clear any cam i'd like to put in it. i know it's splitting hairs but that would affect the balance a tiny bit.

those tools are pricy