Im ultimately trying to make more low-end torque for towing. Its an LQ9 with a comps cam 202/212 .507 lift 116 LS. besides having some idle issues which I think is caused by the guy before me drilling a hole in throttle plate. cant get it to idle less that 725 with IAC at 0. stop is all the way down... but I digress. I know back in the carb days we'd go 2 barrel when we wanted to make lower end torque, so Im thinking the trottle body would have the same effect. thought and any idea how to calculate this?
if you look at this log.. its pretty big. I was just gathering data. found I needed to pull a little timing out.
Attachment 94435
Attachment 94436
Should have probably mentioned other than cam and springs its an all-stock motor with cathedral port heads.