Hi everyone
I'm a new user and have been specializing in carb and ignition as a sideline since 1970 including corvette K66 ignition and Olds UHV
Carbman.
One more thing isn't the vacuum fitting for the vacuum system on the 5 and 8 runner? If so take a pair of needle nose pliers and pinch the vacuum hose off right at the intake if the miss clears you've got a leak in the vacuum system which will kill these 2 cyls leak could be anywhere go over to...
Isnt 5 and 8 fed of the same intake runner one cyl not firing could be killing the other one on the same runner, if its a automatic isn't the modulator fed of that runner? Vac line could be off down at trans or valve spring on one cyl or if it hydraulic cam a lifter can do this by holding valve...