Fast 90/92 or 102
The FAST 90/92 is as big as I would go on a stock LS1/6 engine regardless if you are going N/A or FI. If you are going FI then I would have the smaller ones ported for better flow, buts thats all. As is they flow very well over the LS1 and LS6 manifolds. The 102 apart from being a pain in the *** to make it fit, it's over kill period. The only guys I see that are really into performance are the guys running a 6.0L or bigger.
There was once a time when the debate was ls6 vs. FAST 90 and many said the FAST 90 was bigger than most people needed. Now the FAST 90 is considered to be the little intake and we've stepped up to the 102. Strange how things turned out no? 
Unless you are running a big stroker motor I really don't see the need for the extra plenum volume of the 102, not to mention the pain in the *** that comes along with it.
BTW your getting ripped trading the m6 for the intake, the m6 swap is easily worth a 102 combo with everything on it.
Unless you are running a big stroker motor I really don't see the need for the extra plenum volume of the 102, not to mention the pain in the *** that comes along with it.
BTW your getting ripped trading the m6 for the intake, the m6 swap is easily worth a 102 combo with everything on it.
