5.7 fuel pressure regulator info

[1967GTXhemi]

i am currently using a corvette fuel pressure regulator but it is pushing much too much fuel into engine i want to swap to an adjustable fuel pressure regulator but i dont know what brand or where to buy one anyone with some information on where to look

 

[5.7 hemi]

The hemi requires 58 psi and that's what the vette regulator puts out. So are you sure you have too much pressure?