Another VAC question
Thread Starter
Melting Slicks
Joined: Jan 2000
Posts: 3,326
Likes: 523
From: home
Another VAC question
Now onto the next issue of my search for a perfect running 435 Corvette. I've been reading here on the forum about changing the vacuum supply from ported to manifold. My car is a 69 427/435 manual trans car. I bought it from the original owner in 1977. To the best of my knowledge the 1111928 distributor is all original other than the cap, rotor and t.I. pickup coil. The current VAC is stamped MS 201 15. The engine is all stock other than an Isky Z66 cam I installed in the mid 80's. I did shim the distributor endplay to 0.010" at that time. It idles at 800 with 12" vacuum. Any suggestions for a VAC? Leave as is or replace it with ?? The current one does hold vacuum and the breaker plate does move freely. .
Tech Contributor
Joined: Aug 1999
Posts: 14,379
Likes: 6,390
From: At my Bar drinking and wrenching in Lafayette Colorado
Now onto the next issue of my search for a perfect running 435 Corvette. I've been reading here on the forum about changing the vacuum supply from ported to manifold. My car is a 69 427/435 manual trans car. I bought it from the original owner in 1977. To the best of my knowledge the 1111928 distributor is all original other than the cap, rotor and t.I. pickup coil. The current VAC is stamped MS 201 15. The engine is all stock other than an Isky Z66 cam I installed in the mid 80's. I did shim the distributor endplay to 0.010" at that time. It idles at 800 with 12" vacuum. Any suggestions for a VAC? Leave as is or replace it with ?? The current one does hold vacuum and the breaker plate does move freely. .
Lars
V8FastCars@msn.com
Last edited by lars; Jun 30, 2018 at 12:13 AM.
