.35 of an inch
That would be .035 in.
AC Delco 44 or R44 (R is for resistor) Autolite #86
The spark plugs on a 283 are wired the same as any other sbc.
.035
Drivers side, first one up front.
No, Ford has never built a 283. The 283 is a Chevy engine.
Chevrolet did not build the 283 in 1968. The 1967 Chevy 283 had from 195-315 hp depending on how it was set up.
Remove spark plugs. Turn the engine over by hand until the #1 plug, (front plug drivers side) is at top dead center on the compression stroke. The rotor will be pointing to the #1 plug location on the distributor cap. Firing order is 1-8-4-3-6-5-7-2.
No.
yes
Yes,