i have a 77 911s that has zero power up to 4000 rpm,
when i rev it in neutral it goes slower up to 4000 rpm than hesitates than takes off this happens but its subtle.
when its in first gear it has no punch up untill 4000 rpm
the compression seems fine with the lowest being 120psi and the most being 140
ive tried everything i can think of but i cant nail it
