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| | | Forums66 Topics128,078 Posts1,056,039 Members48,433 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Feb 2008 Posts: 23 New Guy | | New Guy Joined: Feb 2008 Posts: 23 | Hi Bolters...need some expert advice. I have a grandson with a 1954 3600 ad. He is a minonite and cannot have a computer. He has trouble with vac. advance and timing. He has a 1973 250 chev. six, 4.1 liter, Rochester single bbl. In it. He says vac. coming from base is too strong and messes up timing. Is this possible?. He put a tiny ball valve in line to reduce vac. in order to run at all decent, I said I would ask the experts. What is the proper way to set timing so it performs thruout the rpm curve..Appreciate input Sepp
Plattelnjpichler
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