L31MaxExpress
I'm Awesome
Custom grind 218/228 @ 0.050 on a 108 LSA. The only thing vacuum on my Express van is the ac controls. Not sure how it would feel with vacuum boosted brakes as I hydroboost swapped years ago. I could tune a LS PCM with 6 in/hg idle vacuum and have it run well so vacuum problems are not something I have to worry about.
My old TPI 383 had a 232/240 @ 0.050 on a 108 LSA and made 8 in/hg in Park and about 6-7 in Drive with the AC on. Idled perfectly at 850 rpm when it was warm.
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