|
|
Tech Question
Mark Mittelstaedt, Kernersville, NC, 1969 Dodge Charger R/T 440
I'm getting ready to send off an order to Summit for a new Edelbrock Thunder series AVS (800 cfm w/ electric choke) because I'm tired of fighting my original AVS's driveability problems and I need to get this car fixed quick. I originally had an open centered heat insulating gasket (about 1/4" thick) under the original carb, mostly for the purpose of clearing the choke housing which is a modified 6-pack choke because the correct choke was not available when I restored the car. Since the Edelbrock comes with an electric choke, I now have the option of just bolting the carb to the manifold with only a paper gasket. Is this the best option for performance and driveability? Or should I put a new heat insulator under there again (the old one is shot)? Open center? 4-hole?? I can't go more than 1/4" without hood clearance issues. The car is a nearly stock 440/auto/3.23 Charger used entirely for street cruising. The ONLY mod is a MP 284/284 .480/.480 "Hemi grind replacement" cam.
Thanks for a quick response so I can get this thing back on the road,
Mark Mittelstaedt
Mark, normally an open spacer promotes high-RPM horsepower (by increasing the plenum volume) at the expense of driveability and throttle response. But 1/4" doesn't amout to a hill of beans, and with today's withches-brew vapor-lock-prone gasoline, keeping the carb cool is important. So any heat insulator is a good idea, based on your combo, go 4-hole if you can, if not, open's OK.
Rick
| Next | Index | Previous |
|---|