tach issue w/6A
Thread Starter
Joined: Sep 2000
Posts: 2,508
Likes: 197
From: Moorpark, CA
Car: '91 GTA, '92 T/A Convertible
Engine: GTA: 350 w/Vortec heads, T/A: 305
Transmission: Pro-built 700R4
Axle/Gears: GTA: 3.27, T/A: 2.73
tach issue w/6A
I have an MSD distributor, MSD coil, and 6A box. The engine is a 350 with TPI. The car uses the stock tach. The tach reads fine below 3,000 RPMs. Once it goes above 3,000 RPMs the needle drops to zero and then starts to jump all over the place. I have read that this is fairly common and that a tach adapter would solve the issue. The question I have is which tach adapter to get? To me, the 8910 seems like the correct one. Other people have told me that I have to use the 8920, but the 8920 says its for a magnetic pickup. Which one is correct?
Supreme Member
Joined: Jan 2006
Posts: 3,341
Likes: 12
From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
Tach This Note On The Bulletin Board
The 8910 is correct.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
I Dont Mind Wreckin On The Track, No Paperwork To Fill Out
.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
I Dont Mind Wreckin On The Track, No Paperwork To Fill Out
.
Thread
Thread Starter
Forum
Replies
Last Post
Hotrodboba400
Firebirds for Sale
3
Dec 10, 2019 07:07 PM
Hotrodboba400
Firebirds for Sale
0
Sep 2, 2015 07:28 PM