Re: Backfire through carb won't run
- Make sure firing order is correct for the model year camshaft, could be 351W firing order or 302 depending on cam.
- Make sure your distributor is in correctly and initial timing set correctly
- Make sure your plug wires aren't crossed, even the best of us make mistakes now and then
- If all the ignition setup is good, valve adjustment or mismatched parts could be hanging an intake valve
Much more likely a firing order issue
70 Sportsroof, 427 FE/489 cid, TKO-600, 31 spline 4.10, A/C. modified Mass-flo EFI/reprogrammed A9L/CnC ported Victor.