yah i have 1 3/4 and im sure that will do its job. with stock heads dont know how much the 1 7/8 would help. the gt7 has less lift and i dont want to spend another $$$$ to bring it up but if i had 1.8 rockers i would do that.

Seems to me the gt2-3 is the way to go.

Some member on the other site used the gt2-3 on his stock trailblazer ss and this is what he dynoed. no other mods than electric fan swap. this was thru stock exhaust and stock manifolds


you can see the red is the stock set up which turns off at 130 mph. he just took off the limiter to get past that 130 on the new setup

 

one more thing the gt7 has less lift but a higher lobe separation. What would that do for me? would a higher lobe sep be better to go with if you lose some lift?

 

No. I would stick with the GT2-3.

 

ok ill talk to brian tomm see exactly what he says.

 

what does magnuson say about the gt2-3 in your high compression application? Might want to give John a buzz over there

 

Well talked to kevin at ligenfelter and he said they never used them in the LS2 before and for a fact they know it helps in the truck applications but for a LS2 its a little bump up but not really as much as if i was using the truck 6.0L. Ill wait off on this until i see some results with a LS2 and a cam with a maggie.

Thanks for all your guys help.

 

Does that chart show a 70hp and about 70tq gain from the GT2-3 cam and tuning? Wow...