Dear Bert;

The 'Cadillac' 261 is a high torque low RPM engine (5000 or less) which it gets from It's longer stroke etc.

Not being a mechanic, you should stick with your plan for the 2 Rochesters etc.

When this guy in Canada gets his EFI system going; then things could change.

Good luck. \:\)

John M., I.I. #3370

"There are no shortcuts to any place worth going". -Anon