How tall do you want to go should be a question here. If your say 6'4" tall and you put a 3" riser in and want to stand up, you could just as well not put in a riser. That said, a pivot riser will allow more height because you generally go up more with one, a block mostly goes back so you can't get as tall.
Clutched
Jetted, boyesen reed petals, boost bottle, 98xc carbs slides, 1371 needles, gutted air box
Homeade 7 1/2" riser
Homeade suspension drop brackets
shortened and blackened windshield
powermadd handguards
144 conversion, tracks usa extensions, custom tunnel extension and rear bumper, IQ flap, 1.25" track