Not sure what year engine is but it was dropped there was a 5.0 h.o. in it before and right now 1st gear shifts out at about 45 mph manual in yellow zone is when we shift its not very good for sliding the back end around I mean it slides around but not as good as we want it to and it dont seem very easy like it should be for his 350 bored .030 over with a edelbrock carb (4 barrel) and edelbrock intake manifold o ya the speedo is off by about 15 mph at 65 cause of the big tires

3.73 or 4.10 but if those gears are installed i wouldnt reccmoned driveing it on the freeway because the engine will whine as well as the gears