Refurb 4160 solved idle issues

I bought a 1975 Chevy Blazer recently. The 350 had been modified/rebuilt by the previous owner but would not idle. I went through compression check, timing, etc. I cleaned and put a kit in the the old 4160 but still experienced issues at idle.

On the advice of a friend, I bought a refurbished 4160 and now it idles and runs great!

Thank you Holley!