well it seems like the best plug in a lot of peoples opinions are the acdelco, now my question is what submodel if you want to call it that. rapid fires i heard are good but i have a buddy that ran them in his 84 and said they were crap. does acdelco have something like a +4 like bosch does.

and this is totally off the subject but i was looking at the tech articles and i just set my fuel pressure at what it was before i started the reg. and pump project. i want to fine adjust it now, the article about using a volt meter, it says you disconnect the connector and what are you suppose to do with the wire that you are connecting to it, havent paid much attention to what it looks like after you disconnect it. are you just stripping the wire that you are going to connect to your positive lead and just pushing it in there and just reconnecting the connector? got lost

 

Thirdgenlover,

I would recommend going with the standard ac delco plug. You dont need to spend extra on the other crazy designs. Over all it isn't worth the price difference. Just match the heat range ie cast iron heads --> can run a hotter range plug relative to your engine modifications and aluminum heads ---> must run a cooler plug. Just gap the plugs and you'll be good to go.

Take care,

Rabi C.

 

Yep, What he said!