which spark plugs

[SenseiJ]

2000 mounty 5.0 gt40p heads...
I got Motorcraft finewire platinums
P/n sp-432

I've read the motors prefer copper?
Did I make a mistake?

What are yall runnin?

 

[SenseiJ]

come on guys?

20 something views and no one has input?

 

[gmanpaint]

Those plugs are fine. Autolite platinum are good as well. Just use the stock part numbers is all. Can't go wrong with either of those for stock or slightly modified.

Are you tuned and have a bunch of high HP performance mods, needing special plugs and wires?

 

[SenseiJ]

Those plugs are fine. Autolite platinum are good as well. Just use the stock part numbers is all. Can't go wrong with either of those for stock or slightly modified.

Are you tuned and have a bunch of high HP performance mods, needing special plugs and wires?

well eventually i feel i'll need to switch to some performance plugs with a certain heat range/gap.

I've got a parts list i'm about to double check and order everything.
heads, cam, rockers, 1" phenolic spacer, i'll build a full exhaust, intake has been modified to receive the coldest and freshest air possible. 30lb injectors, upgraded in tank pump, maf calibrated for injectors

Also getting an sct x4 and a tune for 91

 

[donalds]

I recommend don lasota

Emailed Custom Tuning

LaSota Racing Technologies is one of the first SCT Dealers in the country and the first in Ohio. When SCT needed experts to train new dealers to tune cars, they called on the experts at LaSota Racing to help with that task. LaSota Racing has been traveling and training new dealers since SCT started.

lasotaracing.com