Ported LS6 intake
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I got a FAST 78 for sale in the classifieds section, and acutally since your sig says you have an 85MM TB, i remember a guy porting the opening of the fast 78 to 85MM (since the rest of the fast 78 is exactly the same as the 90)
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#9
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I have a ported LS6. Gained me a few HP on the dyno. I was up about 5 RWHP after porting the intake and installing an UDP. The gains would have been 8 - 10 RWHP higher, but switching from stock wheels and 245 tires to TT2's and 315s limited my gains. Also, no need for larger injectors, it wont skew your a/f much at all, plus closed loop will adjust for it anyway.
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well on the way i have a G5X1 cam and a set of Dart Pro 1 Ls1 heads that will be ported and polished and if it is necessary i may get the lingenfelter intake to match the heads to get full use out of it and then new injectors would that be a good combo????