As long as the fork offset gives appropriate trail, any head tube angle between 65° and 80° will work fine. How slack are we talking? There's a 53mm offset Cervelo FK26SL/UL to quicken up the steering if you have a 70° HT and find it a tad sluggish. 3T Funda is available in 43, 49 and 53 to tune your steering.
As long as the fork offset gives appropriate trail, any head tube angle between 65° and 80° will work fine. How slack are we talking? There's a 53mm offset Cervelo FK26SL/UL to quicken up the steering if you have a 70° HT and find it a tad sluggish. 3T Funda is available in 43, 49 and 53 to tune your steering.