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rkreigh · 02-21-2015

I have no issues with the secondaries gone other than the simplified maint and increased performance

it's not a good idea for passing emissions but the lt5 don't need no stinkin secondaries IMHO and marcs cal is spot on with this mod

don't expect too much in terms of additional hp unless you really open up the ports in the head to take advantage of the intake porting

even without the additional porting, I like the sharper throttle response, increased mid range torq (about 8 fts on the lt5) and likely about 5 hp up top

the flappers are only a few cfm in restriction but they really are better off gone and passed on to someone who wants to keep the car stock

very happy I did this mod with Marc. get rid of the air pump too and lighten up the car

"parts left out don't break"

it's not a hack, it's a really nice mod

02-21-2015	#33
rkreigh Join Date: Jan 2004 Location: Alex VA Posts: 1,080	Re: Bogs for a second and then takes off I have no issues with the secondaries gone other than the simplified maint and increased performance it's not a good idea for passing emissions but the lt5 don't need no stinkin secondaries IMHO and marcs cal is spot on with this mod don't expect too much in terms of additional hp unless you really open up the ports in the head to take advantage of the intake porting even without the additional porting, I like the sharper throttle response, increased mid range torq (about 8 fts on the lt5) and likely about 5 hp up top the flappers are only a few cfm in restriction but they really are better off gone and passed on to someone who wants to keep the car stock very happy I did this mod with Marc. get rid of the air pump too and lighten up the car "parts left out don't break" it's not a hack, it's a really nice mod