The 1947 - Present Chevrolet & GMC Truck Message Board Network

Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1969 - 1972 Blazers and Jimmys Message Board > 1969 - 1972 Blazers and Jimmys Projects and Builds


Thread Tools Display Modes
Old 08-29-2018, 08:46 AM   #1
Registered User
Join Date: Jun 2018
Location: Arizona
Posts: 10
TBI distributor in a 71 Blazer

Hey guys, I can't seem to find the answer to this question online:
I'm installing a TBI system (AFI's legacy system) in my 71 Blazer. It's using a stock TBI distributor from say an 88 Blazer. By referencing diagrams online, I stabbed the distributor to mimic where it shows the electronic plug connector positions and where the #1 spark plug should originate from. My question is, the elec. connectors are almost pointing right at the firewall and probably won't be able to get them plugged in or adjust for the initial timing if I have to rotate any closer to the firewall for initial timing adjustment. Since there is no vacuum advance or internal stopper on this distributor, can I just rotate it to another plug and make that the number one plug? like number 7 that's listed on the picture I included? Then just re-stab all the other connectors on the cap to the correct firing order. I don't know how "dumb" these TBI distributors are, in relation to what it thinks the #1 plug is.

The distributor needed to be provided separately from the kit, so it's a new, bone stock Chevy TBI distributor from a 1988 350.

Attached Images
hahnn6 is offline   Reply With Quote
Old 08-29-2018, 10:50 AM   #2
Senior Member
A1971Blazer's Avatar
Join Date: Nov 2013
Location: East Tennessee
Posts: 1,095
Re: TBI distributor in a 71 Blazer

you can rotate it anywhere you like...then simply find TDC on #1 cylinder...look at where the rotor button is pointing and start #1 plug wire right there
also you can pull the distributor out and rotate it to where the connectors will be in the correct position...
it doesn't matter where the wires start as long as they are in time with the cylinders and have the correct firing order....
the only issue with moving the plug wires..... may be the length of the wires...making sure they reach the correct cylinder
1970 Chevrolet K/5 Blazer
1972 Chevrolet K/5 Blazer
A1971Blazer is offline   Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -4. The time now is 05:58 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Copyright 1997-2013