Most of the information for TBI mods i got from several camaro and off road forums, https://www.thirdgen.org/ultimatetbi2/ this is a quick read into it. http://tbichips.com/?page_id=217 this is some pics and info for what needs to be ground down. It supposedly adds 50cfm of air flow or so, is there any benefit i couldn't tell you. Van is sadly 3months to a year from being on the road depends on how much work i have comming and money i have to burn. My tbi swapped LT1 s10 only has a fuel spacer in it. that being a 350 and it can idle all day through town it gets 16-17mpg city which for a Lt1 v8 in an s10 with a/c on thats good enough for me. Harris performance has a lot of info for tuning tbi engines most of it applies to 350's as everyone seems to think 305's are junk, but im looking for an interstate cruiser i want to touch every last bit of the lower 48 and maybe one day hit alaska in the van too, so my main focus is fuel economy. I know 5.3 and a 4l80e would do it justice in that dept and power, but it wouldnt be my dad's van anymore call me sentimental. https://www.amazon.com/Throttle-Bod...qid=1566313886&s=gateway&sr=8-16 this is the spacer i bought beings all it does it lift the fuel pod over the throttle body, i used the least expensive one i couldnt justify spending over 30 bucks on something unproven to me.
Last edited by Juntao_DW; August 20th 2019 11:12 am.