Your is better...
Well, technically, they are the same. But, in the first few years they were developed, there were a few problems. But, I'm sure by now, those buddies you have that got this engine, have it running well.........
Their is a couple things different that I believe give you the edge, stock. The two years I looked at was yours, the 2001 and the 1998. The stroke is the same, 6.1:1 and the weight is equal at 815 lbs.(dry). But your carbs have bigger main jets at 162.5 and the 1998 at 160. The other change I noticed is the impeller. Yours is a 15*-21* pitch and the 98 model has a 14*-21*..........which really isn't enough to make any real difference.
But, in my opinion, when it comes down to racing? It's all in the way the driver handles it. So many times, races are won on the drivers ability, not just raw power.....................:cheers: