Increased my jet sizes Primary & Secondary by +3 which brought my AFR at launch (4,200 rpm off a transbrake) down from approximately 13.75 to 12.6.
I shortened the whistle vent on the Secondary side but was unable to install the jet extensions and notched float without a leak but the leak ultimately was unrelated and resolved. Try that upgrade again for next time out in late Sept.
I still have a AFR spike just after launch from 12.6 to 14.75. Defintitely threw more fuel at both the Primary and Secondary side via larger nozzles in the mean time but didnt appear to make any difference in AFRs or 60' times.
__________________
1965 GTO Cameo White, Red Interior - 389, ST300 numbers matching
1965 GTO Black, Black Interior "Post" car - 389, M-20 numbers matching
1965 GTO Silver, Black Interior 100% dedicated drag car w/1968 400(461), 16x Heads, TH400, 3.90 9" Rear 1.656 60' 7.566 90.057 (1/8th)
1971 GTO Black (orig. Quezal Gold), Gold Interior - 400, TH400 numbers matching
1972 GTO Cardinal Red, Black Interior - 455, TH400 almost numbers matching
|