I want to modify my 3RZ 5-spd enough to maintain 65 - 70 mph going through CO mountains on I-70, rear bed loaded with camp gear, (maybe 500 lbs worth), BUT I want to maintain the 2500-2700 self-limited rpm on it that I do now. Obviously, 2500-2700 rpm won't do that at that speed. But it doesn't appear to need much more power/torque. I was told by L.C.Engineering that by using their 35 lb flywheel I would be surprised at how well it would work for that purpose, and if still not enough, the addition of a supercharger certainly would. Does the flywheel statement make sense to you guys? It doesn't to me, but I'd like to know someone that has used a heavy flywheel for that purpose. They say it will also "pull off" easier under load than with the stock flywheel, and that makes sense. But to be able to maintain my speed without going over my self-imposed rpm limit, I'd like some suggestions please!