Not sure there is anything to gain by dropping a 250 crank in a 194. The difference between the 194/230/250 is the crank.

To efficiently run E85, that is to get power and mpg back, you need to increase the compression and the amount of fuel. Can you still run gas probably not.

IF you want to increase the compression in a 250, use 307 pistons. If you would like to find the compression height of a piston there is a Keith Blacks web site.

Larry


I don't own a vehicle that isn't old enough to drink.