Which is Bigger...... - NJFBOA - Home of New Jersey's Camaros and Firebirds

PDubs87Z28 · 03-19-2005, 08:49 PM

Which is Bigger???? A 85 Monte Carlo SS 305 H.O Rochester 4bbl or the 87 Z28 305 (non H.O) Rochester 4bbl. I was told the Monte carb is got more CFM then the Z28's stock carb.....I had to do a swap because i had no money and my buddy had his 305 H.O out of his 85 Monte....so i took the carb.

The Fixer · 03-19-2005, 10:08 PM

They're the same size - 750 cfm. The only difference is the '85 carb might have one less vacuum port than you need - you might have to put a T-fitting in to run all the vacuum lines properly.

PDubs87Z28 · 03-20-2005, 04:51 PM

thanks....i heard the camaro had less cfm but i'll take your word on it. it was just a drunken conversation that i had to get some clearity on.

84HOtransam · 03-21-2005, 12:45 PM

check thirdgen.org for free mods to do on the q-jet... most likely the HO carb will have a better set of secondary rods and hangers which you can just pull out and drop into your carb..