I think the jets are originals. The Weber book shows the primary as .140 main jet and .170 air corr. jet. The secondary has .0135 main jet and .140 air correction jet. The spark plugs always look good - a light brown color.
What do you think about planning the head about .040 to raise compression from 8.77 to say 9.5? How would the Gonkulator react?
I only race 2 to 3 time a year but I have saved all the slips since 2007. The early ones cover 1/4 mile and the later the 1/8 mile. All the 1/4 mile strips have closed in LA and SD. You are welcome to a copy if you like.
