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Discussion Starter · #1 ·
Which set up has more peak HP

95/96 Mach 1 in stock trim with stock twin pipes, or ---- 98/99 HO in stock trim with stock single pipe ??

TIA
 

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Mach 1 engine is supposedly 125_127 hp with the twin pipes and 44mm carbs. Dont quote me thats what I have heard. I have a mach 1 set up in my sled and I am curious as well.
 

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Yup. Any 670 is just awesome. The mach 1 and ho are very close. Maybe 4hp different I cant find a 100% answer on hp differences from anyone anywhere. Just paint the head red and say it s a 583 lol. YOU JUST JOT SPANKED BY A 583!!! LOL.
 
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