Allpar Forums banner
1 - 1 of 1 Posts

·
Registered
Joined
·
560 Posts
I built a 361 as well. Had a similar issue. Turns out that the rocker shafts had to be shimmed up to accommodate the new cam. When it idled, it had a mild "Hiss" sound. Dana nailed the problem, I'm thinking.
 
1 - 1 of 1 Posts
Top