David,
OD-77T all the way. Tested a Nova Rossi 35+ with an old Irwin S-pipe.
The Nova Rossi engines like hotter plugs to burn the fuel
and give you better performance. I tried the nova 5's and 6's,
but I think the 77T's have them beat for sure.
I did a plug test last night at the lake wiith the following plugs:
OD-287 Special 50/50
OD-77T
OD-97T
NR-5
NR-6
It was an interesting night on the lake, they all ran quite well, but the 50/50 and the 77T were
the fastest on the Stalker Pro. They were tested with the same H-7 propeller with almost
the same flow on the old school and Boris flow meters. Air Density was 100 and the lake is at
910 feet above sea level with trees sounding the whole lake.
Enjoy Testing,
Mark Sholund