Fred maybe you can confirm, but doesn't look like a hipo. No second spring and looks like the fuel pump arm is for a big block.
Seller claiming it is a Hipo in the ad title and description:
"NOS OEM Ford R/M 1965 1966 1967 289 HiPo Fuel Pump"
"Up for auction is a NOS Remanufactured button top style fuel pump for a 1965-1967 289 HiPo motor...."
Link to auction here: eBay NOT a hipo fuel pump