I need a new carb looking at holley off road truck avenger. Any sugestions? I tried rebuilding the old rochchester 4b but my truck still dosent idle or run good. I tried buying a used holley double pumper 750cfm jetted it down that didn't work. Put 2 sets of new plugs in it. HEI ingnition but no luck. When hot my truck starts up awsome but still bogs. The passenger side 1357 runs clean. But the passenger side 2468 run really wet and fouled. ???????? I am confused????????? Not really intrested in EFI.