You'll love it even more with a rolla mani on there. I did a similar thing to you a few months back and got the same result, first I did a service changing the spark plugs/leads/dizzy cap/rotor arm, made a nice difference and ran alot better. Few weeks after that I had the oil flushed and changed, made a big difference, old oil must have been sludgey or something. Then I got a rolla mani, much better response throughout the rev range and plenty more power top end. After that got an induction kit and again made a good difference to mid-top end of the rev range. Before it used to get to 80 and run out of steam, now it gets to 90 easily and keeps going.