318 build up

The 8-1/4 will hold this power level fine. Theres better pumpkin on the market than a stock Sure Grip, but I wouldn't bother at this level. Better axles and a C-clip eliminator if you can find one would be all that I would do.

Forged slugs for the N02 shots!
The KB HyperU's can take it, but you must be percise or they will shatter/crack. Most likely in the crown area, but not allways.