jseng1 Joined Nov 26, 2009 Messages 3,374 Feb 2, 2025 #1 A customer found a 7 HP increase by porting his 500 domni head to these specs.
t ingermanson VIP MEMBER Joined Oct 17, 2018 Messages 677 Feb 2, 2025 #2 Which head is that? The down draft SS?
jseng1 Joined Nov 26, 2009 Messages 3,374 Feb 2, 2025 #3 These specs work on all domni heads 500 to 650 but the 500 head that showed 7 HP increase was NOT a down draft ( to meet race class regulations).
These specs work on all domni heads 500 to 650 but the 500 head that showed 7 HP increase was NOT a down draft ( to meet race class regulations).
