I have a Picco .28 modded in my Savage X and it's insane. Any Picco .28 will run great.Excellent engine for the money.so you won't go wrong there.I have nine nitro's.All Picco except a modded LRP.28 AND .32. I mod all my engines.And Picco produces big power!!The LRP.28 is a screamer and the .32...