Yes the deep 0.67:1 OD ratio of the 200r4 trans, coupled with the 2.41 gears would prefer an engine that supplied plenty-o off idle/low rpm torque, such as a 305/350 with their comparatively long 3.48 crank strokes.
I had an 89 Caprice 305/TBI, 200r4, 2.41 gears and it would pretty much idle down the highway. It got 27 mpg on the highway.
Last edited by Hogg; 05-08-2013 at 10:18 AM.
Reason: 305 SBC not 205