Originally Posted by
NitroFreak2
Thanks Monty,
I'll have to check with the PO on what shims are in it bit I would think that its shimmed for 30%. One more question, is this JP a good motor? I think that it is a Nova based motor and what I CAN find on it people say they rip. Don't know yet as still breaking it in and waiting for servos for the truggy and buggy, hurry up mailman!

Thanks,
Mike
Yes the jp b5n is a very nice engine , they were a lot of different crank timing specs on those engines so just depends on which one you have that depicts how it will perform .
Use a 6.5mm in truck and a 5.5mm in buggy