|
Register or Log In To remove these advertisements. |
|
|
|
|||||||
|
|
Thread Tools | Display Modes |
05-10-2007, 09:05 AM
|
#1 |
|
Registered User
Join Date: Apr 2004
Location: Clanton, AL
Posts: 1,253
|
Backfire on deceleration.
I just put a 400sbc in my '70 & a Holley 4175 (650cfm spreadbore) I had sitting around. I am running a HEI ignition system w/ Summit 50k coil. I get a little over 20" of vacuum at warm idle. Cheap headers to dual exhaust.
My problem is that when i let off the gas, is sometimes gives a popping exhaust backfire. This happens more if I'm getting on it & then let off. Any ideas what causes this?
__________________
85' CUCV M1009!!! The newest addition! 6.2diesel, Th400, NP208, & only 36k miles! 70' C-10 LWB Fleetside - Looking good these days!  05' Dodge Neon 88' Winner Escape Sport 1750 - 4.3v6 94' Seadoo SP 84' Honda TRX200, bare nekkid. Just a frame & tires. Always looking for another project or any good deal! 
|
|
|
| Bookmarks |
|
|
Threaded Mode