Take the #1 spark plug out and hold your finger over the hole while turning the engine over slowly. When you feel the air coming out of the hole you are approaching #1 TDC. Stop when the balancer is aligned with 0 on the timing tab.
With #1 at TDC you can drop in the distributor with the rotor pointing toward the left-front corner of the block. Put the cap on and install the wires using the tower aligned with the rotor as #1 and going clockwise with the firing order.
Sometimes you have to move the distributor around a little to get the engine to start before setting it to factory specs.
i have a gm goodwrench 350 with a summit hei distributor in my 58 Chevy truckits about 1/2 inch from my firewallso... little room to spare but yes it worked
The ignition timing is set on a GM Goodwrench 350 engine by bringing the number one piston to top dead center. The distributor rotor is then pointed to the number one piston, a timing light connected, and the rotor turned until the correct timing is reached.
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Pop the distributor cap off and wiggle the rotor side to side. There should be no play in the shaft.
Need to buy a GM factory cap,wires, rotor. That will take care of it.
You can purchase a new GM 350 that puts out 350 hp for $4056. If you want to build the same thing yourself, you could go to a GM warehousing distributor to find what parts were used for those results.
If you are running the stock HEI distributor, .045" is good.
If you look at the right side of the distributor just under the cap you will see 2 sets of electrical wires that plug into the ignition module. Remove the cap and rotor and you will see it. There are 2 small screews that hold it in.
Any GM dealer, any GM warehousing distributor, almost any auto parts store, most catalog outlets.
http://www.classiccarauto.com/impala/how_to/images/distributor.png
Gm. did not use a crank shaft sensor in 1988, It had a distributor that done everything.
If the distributor is in right #1 on the cap should be at 5 o'clock