Re: Quadrajet replacement advice and tech support
Only problem I see with buying a rebuilt one is trying to find out what's in it. I had a new Edelbrock 1901 on my 327 with a Performer intake and cam, and it ran really well. Main jets were .069, primary rods were 36B, secondary rods were DR. Good out of the box, but then the car developed a massive vacuum leak that I thought was a tuning issue, and I started playing around with rods and jets, had my old Q-jet rebuilt by one of my racing buddies, etc. I have so many pages of notes and calculations it's not funny.
Then, after I fixed my vacuum leak, I tried a Holley 4175 spreadbore Q-jet replacement, P/N 80555C. What a difference! A car that could hardly turn a tire with the mild 327 and 2.73s suddenly became capable of breaking loose from a 5-mph start. Right out of the box. I did change the power valve to more closely match what I needed, but other than that it was good to go. I think the 750 cfm of a Q-jet is just a little too much for a mild 327, and that 650 CFM Holley gave much better response.
Just saying...if you're not concerned about originality, can swing another $100 or so for a NEW Holley (Summit sells 80555C for $315), and wanted to stay simple, you might want to think about it.
If you want to try to redo that Q-jet (or get another, correct 4MV style), I have the Doug Roe Q-Jet book you can "sign out" from my library.
69 'vert project big block/TKO 600 RR
68 'vert driver RS clone -- gone!