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I agree with Wise on using the older UD hyd profiles. The 108lsa with those lobes will give a noticable idle but power brakes "should" still function in a stroker combo,but you could spread them to 110 or even 112 if idle vac is a big deal.They run better than most would think(based on specs.LOL) I use them to replace other hyd grinds and they work great. Tim @ Bullet racing cams can get you the cam you need.

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Not looking for noticable idle. I don't have power brakes or A/C. Just not looking for that attention and noise.

By grinding 110 or 112 on that ultradyne are you hurting it much? Or better start with something different.

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So you want a stock idle,like a stock 318/360 truck engine? As far as spreading the lobes to 112lsa yes, it will tame the idle and even the 108 isn't exactly radical in a 408.

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