Spark plug gap for a 1977 Corvette using ACDelco R45TS is .035
1978 Chevrolet Corvette 5.7L 4BL OHV 8cylThe Spark Plug Gap.045 (In thousandths of an inch)
below link
the firing order is 1-8-7-2=6-5-4-3on ls2 manual trans
goto corvette action center.com or if you have a small block 350 its 1 8 4 3 6 5 7 2
Spark plug order? there is no such thing.
I would use split fire
It is .004
.035
mabey bad plug wires or plugs....or rotor in the distributor...but im 16 what do i know
Here are the engines that came in the 1969 Plymouth roadrunner,so the spark plug gap is the same for all. I sure would like to see it.1969 Plymouth Roadrunner 6.3L 4BL HP 8cylThe Spark Plug Gap.035 (In thousandths of an inch)1969 Plymouth Roadrunner 7.0L 4BL 2 Carb 8cylThe Spark Plug Gap.035 (In thousandths of an inch)1969 Plymouth Roadrunner 7.2L 4BL 8cylThe Spark Plug Gap.035 (In thousandths of an inch)
According to one of Fords websites : For a 1969 Mercury Cougar ( all factory available engine sizes ) ( .035 inch spark plug gap )