why not build your own? if you take a 250 chevy hei grind the mounting flange to the same diameter as the rest of the housing then take the 235 hold down clamp slide it on hei it will drop right in the motor. before you start hold dizzy's side by side and mark where 235 hold down clamp will go on hei. plug in 12 volts and go. about $50 bucks with wires from pull-a-part. i have one around to start up old motors that have been sitting around for extended periods.
