Re: Help! Low end stumble

In the past I always "followed the book" and used whatever viscosity oil was 
being recommended for the crankcase, based on climate. For the past few years 
however, I've just used genuine SU Dashpot Oil. Some people swear by ATF. It 
really depends on the specific engine build and state of tune.

Howard Collins
60 AH Bugeye
69 Austin Cooper S
Va. Bch., Va.