Anyone use a big block fuel pump in a small block?

I need a dual action vacuum type of fuel pump for my 289 and have not been able to find one. I have a new dual action big block pump which fits late 50's-60's ford big blocks. The levers are not identical, but the pumping action/range and where the lever hits the cam are identical. Only difference being that the 289 pump arm hits the cam at @ a 15-20 degree angle(off engine centerline), whereas the big block pump hits the cam at @ 5 degrees. Other than that, pumps are fully interchangeable. Anyone out there that has the knowledge/ experience or advice on this retrofit? Thanks, Chris

Just curious. Why do you need a dual action fuel pump or the extra vacuum boost? I've got a '55 Ford that had vacuum wipers with the dual action pump but got rid of the pump and switched to electric wipers. Much happier now.
[addsig]

Need the vacuum pump for the wipers. The arms aren't interchangeable. Since I had the new pump laying around, I thought it would be easier to try and use it rather than take out my vacuum wipers and install electric ones in my 62 comet wagon.

I get Mustangs and Fast Fords, but must have missed the vacuum wiper ad. What page is it on? Thanks in advance.

mc

'66-'68 Bronco 289's had vacuum wipers and used a dual action pump. Hope this helps. Allan