RE: Showtime 4D and Evo 26 gasser??
I know I popping in here way late but if you can find one a YS110 on 30% is jsut a tad over the same output as a Saito150 but only 2/3rds the weight of the Saito150.
'That being said I have one in a Showtime and it appears to be a great match. Just wrap the stock tank in packing tape to handle the pressure of the YS and add a third line to it for fueling. Otherwise it fits very well into the Showtime.