Can HPT tune each cylinder with different timing. A friend of mine tunes imports in austin and he said they run diff timing in the rear cylinders to keep em from runnin lean. Said it keeps em cooler. Apparently the added heat in the rear cyls also add to the detonation threat. I'm learnin' all kinds of crap.
BTW I ordered the edelbrock intake today !!!
2013 2wd Z71 6.2 crew cab
Old Truck: '04 Chevy crew cab stroked/bored 6.0 to 408ci. forged internals, patriot 68cc stage 3 heads (11.1:1cr), comp 244/246 .600 115lsa cam, 3000 yank tc, built 4L60E, walbro 255, 60# mototron injectors, pacesetter lt's 4" single no-cat exhaust
best time 12.93 1/4 mi @ 103 in the turbo truck.
1968 Camaro Convertible, super sweet!