What size engine are you building?

I have to same converter that was behind my 700hp 493. Its a 9" ultimate

It had 3.55 gears and felt so slow. The 410s in it now feel much better however i ran slower at DW for whatever reason. It never really feels mushy

Gen 3 power 6.22@110, 9.85@135
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performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs