Quote:
Originally Posted by race24x
I see a lot of back and forth. I was considering doing the Big Gulp, Kong X porting, 103TB and a 2.3 pulley. I have stock exhaust manifolds cats, but a free flowing muffler forget the brand but the mufflers are almost non existent LOL. Should I consider not doing the pulley? I see some didnt some did... Also I saw a post that included a Spark Plug change. Is this something that is helpful or better? How often should you change these plugs? Do you have to index them? Sorry went from a supercharged SS to the ZL1 and want to Mod some.
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You should start a new thread with these questions as they are far away from the basic topic here.
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2020 ZL1LE A10.
LME LT4 390 short block, LME CID Heads, Kong E2650, FBO.
15" conversion, MT ET Street R 325/15.
100 octane: 1045hp/1055tq.
100 octane + Meth (1x10+): 1117 hp/1067 tq
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