short video of my GM847 idleing.
idle is set at 1100, i want it around 800
i havent had it tuned yet, it just has a madZ28 tune, but was tuned for a std. bore 350 ect, im doing the obdI conversion so that i can install my 42lb injectors, and give it a nice tune. id expect atleast 400 out of it as it sits without the 150 shot. the heads are stock ported, they just have some clean up work done on the ports and it also has a 5 angle valve job with manely stainless valves.
i havent had it tuned yet, it just has a madZ28 tune, but was tuned for a std. bore 350 ect, im doing the obdI conversion so that i can install my 42lb injectors, and give it a nice tune. id expect atleast 400 out of it as it sits without the 150 shot. the heads are stock ported, they just have some clean up work done on the ports and it also has a 5 angle valve job with manely stainless valves.



plus i love the looks and the compliments i get.