Getting my small block freshened up and I need some advice. I plan on some small shots of nitrous around a 150 shot and I'm unsure if I should spend the extra money and go with the cometic .027in MLS gaskets for 130 or the GM .030 MLS for like 40 bucks. I don't think the .03in makes a huge performance difference I'm more concerned about sealing. Also I have the older style crane spring lifters with the horizontal bars. Does crane rebuild these if not what's a cost effective replacement for a solid .560 in lift cam. Nothing crazy maybe 7400 rpm shifts. I plan on just regular moly rings and bearings. Plate hone and cam bearings anything else you guys recommend?