Well I finally did this mod today. I think I'm the last one to do it. But I did see a slight gain in vaccum. At idle on a cold start up I was at 12 hg/in and now I'm at a steady 13 hg/in. If I gained any HP or TQ, it's at a minimum because I didn't feel it on the butt dyno. But I went to Advance and picked the breather ups for 10 bucks each so it came out to 21 bucks for the breathers and $1.50 for the caps. But the chrome adds a little bling bling under the hood.
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60' ~ 2.1, 1/8 ~ 9.61 @ 73.4mph
Living one day at a time!