- Joined
- Oct 10, 2007
- Messages
- 1,066
I have a 29 hopper with a nova rossi purple head 21 with a rody rhohm crank and pto. I am experimenting with pipes, I am trying a Irwin stamped ob pipe on there now and measuring pipe length is kinda tough, its easy on my inboards. I know 8'' is about right for the 21's. do the outboard guys measure the space between the header and the pipe?. I tried to use a piece of string 8'' long and follow the pipe but I figured there must be a better way. thanks john virgalla