I am just about to purchase an OS120AX to go into a Funtana X100 and was wondering whether to also purchase a Perry Fuel Pump for the motor (Not For Smoke) the one that takes its crankcase pressure by drilling a hole in the rear back plate of the motor.

Are they any good, and would the engine or I for that matter benefit from one fitted.

An early response would be appreciated as it may be as soon as this afternoon, if no answer by then may delay purchase of pump but still get the motor.

Thanks
Simon