Pointless and backwards.People that want to run highway gears and no overdrive but want to make 400+ hp probably should be looking into running large low rpm 0.8 - 1 hp per cid engines.
or a big block. ;D
Then you should have said that to begin with.Yes that was what I was getting at
400 hp at 1 to 0.8 hp per cid is 400 to 500 cid.
Ugh!