backfire through carb
Hello All, I just got back into hotrods again kids grown and left nest. I just bought a nova with a 327 yr 62-67 date code. HEI . I'm getting backfire thought carb on fast kick down. I have checked comp 135-150 hole, found bad plug wires, replaced cap rotor plugs wires. also checked timing?? I do know rotor is on one and timing marks line-up on balancer. it head a 650 DP on it, I have buddy that loaned me a 600 vac sec carb, seams to run good but on kick down stiil backfires through carb. Please Help not sure what to do next. I do know last owner put a mild cam in could timing gears be off ??? or am I reaching. Thanks for all your Time.
Last edited by kellynova; 04-23-2010 at 01:04 PM.