well guys ive had the same problem for awhile. sbc 11.1 tunnelram.ive checked the timing and even tried it at different #s.ive been told its runnin to lean and ive been told its runnin too rich.so its been sittin in the shop for awhile.i want to drive this damn car again.if it were the timing seems bnoth headers would glow.not just one.any of you guys live close by.lol