i have a guy who wants to trade my intercooled 871 blower for his intercooled 1471 blower. i have a 468bbc w/oval port cast heads, 7.5 compression and turns a AA impeller about 6500rpm. would this blower be over kill for a lower rpm motor, i have to run my 871 about 1 to 1 to make 8psi i would guess the 1471 would trun alot slower to make the same?