Alright gentlemen, before half my motor was jacked, i had twin holley 660 center squirters. i recently have found (2) 750 demons for sale at a sick deal! the seller says he had them on his 468 chebby...one person says ill be over-carbing my motor, another will say they will be just fine for what i have...problem is, i dont know the EXACT displacement, but i think its .040 over...it is a 460 ford somewhere in between stock 460 bore and 500cu. here's a pic of it with what i have as of right now, in case it helps.

i really wanna get this setup because its at a great price, and exactly what i need to get my ish running again.
thanx for the future help.
Reid