I had the same problem once after milling and having the block decked. I had to take the intake to the machinist and have him mill it to fit properly. Everything drops lower after decking and milling and won't line up. If you did one or the other it shouldn't be a problem. But maching both surfaces drops the mating surface and now bolt holes won't line up and there is a large gap to fill. Rich
----- Original Message ----- From: "Robert Belz" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Sunday, July 07, 2002 10:18 PM Subject: [Chevelle-List] Performer RPM intake problems > Just thought I'd share this to possibly save others grief. I put an new > Edelbrock Performer RPM manifold on my 454 yesterday but not without having > to modify it. After I gooped it up (front and back of block) with silicon > sealer and set the manifold on I found the bolt holes wouldn't line up. > Further inspection revealed that the manifold hit the casting flash on the > heads at the bolts holes third back from front and rear ( the ones that > stick up the furthest). I had to remove the manifold and file on the gasket > side of the manifold near the top of the holes until the manifold would > clear and set down in place. I don't know if head and block decking > contributed to the problem or it was just the casting flash that caused the > interference. (I have had two other manifolds on this motor and never ran > into this problem.) Now I will always test fit a manifold and not assume > it's going to fall into place. > I also put on a Holley Avenger 770 carb, and MSD Pro billet distributor > with a 6AL box, the pisser is I can't tell if it runs much better than with > my old Q-Jet and ancient Holley Street Dominator intake. Also on the noise > (howl) issue that came up recently with the Holley, mine has a different > growl, not quit as loud as the Q-Jet. > I hope I can get more out of this new set up or it looks like I dumped > about a grand for nothing. Well back to the garage. > > Sorry to hear the misfortune of those in the flooding areas, hope everyone > is O.K. We could sure use some of that water here in Colorado, we are > burning up, literally. > Bob Belz > > > > > ----------------------------------------------------- > To Unsubscribe please visit www.chevelles.net/list.html > To start a new topic, send mail to: [EMAIL PROTECTED] > ----------------------------------------------------- To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED]
