doorjammer

hi guys
need to know what you think......I have a ZZ4 350/355 i check the
plugs today.....the porcelain is off white the ground strap at the top is a
lite green color no oil on plugs. do you think i need to back off the timeing a
little.... timeing inital 12 total 34

ZZ4 350/355
intake power plus open plain
demon 750
edelbrock rpm heads 202/160 64cc
crane hydraulic roller 234/242 adv duration 296/304 lift 539/55
1.5 roller tips
msd distrbutor no vacuum advance.................thanks....Butch

topsportsman1

Any pictures of the spark plugs?? Hard to say from here

chevguy65

Butch my friend...good to see you post.

Like Tom said, post a pic of your plug....these guys will tell you exactly what you need to do, and what is going on with your plugs.

doorjammer

this is something like my plug the porcelain
and ground are like mine ......mine are not BLACK like this one

topsportsman1

Doesn't look to aweful bad,but I got a question? Why are you running a power tip spark plug?

Is this a strickly strip engine? Or do you run this on the street too?

doorjammer

street car autolite 104 plugs

topsportsman1

I think the plugs look fine for what you are doing with it, I wouldn't touch a thing 8)

doorjammer

ok tom......thanks.......Butch