I appreciate the sentiment from all that have responded about leaving original. I guess I should have gone into more detail. The car seems to have what I would now call hesitation. When I first drove it, it was scary. Now the more I drive it the slower it seems to get. That is just me getting use to it but still, I guess if there were some tweaks I could do to make the car respond quicker it would be nice to know. It appears to have some hesitations between hooking up between shifts. I don't mean to bark the tires, just solid exceleration there is a lot of hesitation in the initial bursts which eventually catch up at 36-700 RPMS. I would like to have more rapid response. Is that a carberator adjustment? I guess a newer improved quad is out of the question since we're staying stock. The car is tight to be as old as it is but, just needs replaced parts you know. Thanks.