I Might Just Know What I'm Talking About
Join Date: Oct 2000
Location: C-ville, VA
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Re: rochester 4jet
"Spreadbore here has much smaller primary bores so that it can run on less fuel, while still having those massive secondaries to give it kick."
"Squarebore on the other hand has equal sized bores which allows that the secondaries will double the primaries."
Which one you chose is based on desire. Do you want more low RPM power or higher RPM power?
From what I've seen, I'd go with the Q-jet, but then, I've never messed with a squarebore rochester.
Jeep...need I say more?