360 spark plugs for racing?

I am new to small blocks ( I have always raced 440's), and I am looking for plug recommendations for my 360. It is in a Shelby Dakota. The engine is a 371 w/ a Holley 750 vacuum secondary, Air Gap intake, .484 Purple shaft, Hooker Super Comp, 904 trans, PTC 4200 converter,MSD, CAL-Tracs w/ monoleaf rear springs, 3.55 gears w/ Richmond Locker, Rancho RS 9000 drag shocks with Comp. Eng. shocks in frt. Truck has full exhaust system and runs 7.5's in the 1/8th. and has been driven to every race that it has attended so far. I am going to trailer it however. Any help would be appreciated. Thank you. PJ