Thank you all for your replies. This forum really helps with getting info from other knowedgeable folks. I will put in a new pair of plugs gapped at .035.

This car was red and built by California "T" Components in 1985 for Street Rodder Magazine. It was the cover car on the October 1985 issue. Street Rodder featured this car again with me in it in their April 2006 edition. I took off the 3 dueces because I would usually only run around town using the center carb and then the end carbs would stick shut and the linkage would freeze up on me. Cannot use the car much in the winter in Idaho.

The car was not backfiring until I took it on the freeway which must have fouled the plugs to the extent that they now would not work, and that .045 gap sure must not have helped. I will let you all know how it turns out. Sure alot of fun to drive this T-bucket around town though. I hope the fuel regulator will solve most of the fuel richness problem.