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John Fitzpatrick · 02-25-08, 10:40 PM

Rune-
Your signature indicates a 390 HP 289. That is going to be tough if you're trying to keep your components in the '60's vintage. From what I've learned, the 289 with the Weber set-up needs to be able to rev above 7000 RPM to produce more than 300 HP. That's going to require a solid lifter cam and forged crank & rods. The Webers seem to be the limiting factor at the lower displacements, since I've seen several 289 builds in publications which made around 400 HP with modern heads and intakes/carbs. How durable they were is another question.

02-25-08, 10:40 PM	#2 (permalink)
John Fitzpatrick toy264 Moderator Join Date: Sep 2005 Location: Houston, Texas Posts: 264 Rep Power: 6	Re: Witch cam in a 289. Rune- Your signature indicates a 390 HP 289. That is going to be tough if you're trying to keep your components in the '60's vintage. From what I've learned, the 289 with the Weber set-up needs to be able to rev above 7000 RPM to produce more than 300 HP. That's going to require a solid lifter cam and forged crank & rods. The Webers seem to be the limiting factor at the lower displacements, since I've seen several 289 builds in publications which made around 400 HP with modern heads and intakes/carbs. How durable they were is another question.