Hey guys, all the gaps were at .050 for the TR-55-IX, should I leave them that way or go smaller with my setup:

383cid Blueprinted and Balanced
10.25:1 CR
Splayed 4 bolt mains
11cc dished SRP pistons
6" CAT H-beam rods
Eagle Forged Crank
205cc Trick Flow heads
CC306
Comp 1.6 narrow body roller rockers
Comp push rods
Melling 155HV
6qt Canton
SVO 42lb injectors
CSR electric water pump
ATI SFI damper
Blaster coil
MSD 6AL box
Talyor 8.8 wires
PCMFORLESS tune

 

Why tyhe very low compression??? Planning to spray or boost?? If so return those and get some plain copper plugs, even if NA I would say consider a plain plug.. The exotic metals are about longevity and marketting. If you are really that into performance you wont be leaving plugs in long enough to take advantage of the reduced gap errosion.

 

i just put in some TR 55 V powers and they were gapped at .055 OUT OF THE BOX, did u change the gaps or is that how they were?

 

the gaps out of the box were .050. I can't return them, so i'll just use them, i had them on my last engine as well, but it was stock. My next mod is going to be a turbo, of course after i get a different cam, but thats not going to be for awhile. i was just wondering if the gap should be smaller or larger then .050, any ideas?

 

For NA that gap will work fine, it is the stock gap afterall. I know some aftermarket ignitions recommend not running exotic metal plugs might just check with MSD as I am unsure of their take on this.