Racers

This season I am hoping to move up a class at our local track. The class I raced in upto now used a .5 pro-tree. It took a whole season but I finally got the hang of it. The new class uses a .4 pro-tree. My question is do you think I can get my car to react fast enough? I have upgraded the engine to a 512 with a 262@.050 solid roller. Same 5000 stall,4.10,t-brake, with Cal-tracs. Last season I could cut a pretty good light but was red quite a few times (.008-.010) Will the mods over the winter make up the difference?

Thanks

Dave