Which spark plug to go with?

[Captn. J]

Since I m using 454 vortec but converted to carb.   Shd I go with it's stock plugs or rt45? 

[TopFist]

Yep

[1 ton tj]

ad good old ac delco

[mudboggincrazy]

i always ran the 45 in my motor seemed 2 not flood out as much as the stock 43 plug did

[Captn. J]

going with rt45    thanks all